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# Physics For Engineers

Covers the fundamental principles of physics and their applications in engineering, providing students with the knowledge and skills necessary to solve.

## mathematics

It is decimalized system of measurement based on the metre and the gram.

• a. Si units
• b. None of the choices
• c. Metric system
• d. English system

The cylinders in the figure have the indicated weights and dimensions. Assuming smooth contact surfaces, determine the reactions at A, B, C, and D on the cylinders. NOTE : see fig-13 from the LIST OF FIGURES in Week-1

• a. A = 347.39 kN, B = 600 kN, C = 400.85 kN, D = 347.39 kN
• b. A = 37.39 kN, B = 6000 kN, C = 4000.85 kN, D = 37.39 kN
• c. none of the choices
• d. A = 47.39 kN, B = 60 kN, C = 40.85 kN, D = 47.39 kN

The angular displacement covered per unit time is referred to as .

• ANGULAR VELOCITY

Freezing point of water at sea level

The main advantages of the metric system is that it has many base unit for each physical quantity.

• True
• False

A shot at an initial velocity at an angle above the horizon.

• a. free fall
• b. kinematics
• c. projectile
• d. none of the choices

Commonly defined as the amount of heat energy required to raise the temperature of one gram of water by one degree celsius.

• a. gravity
• b. calorie
• c. none of the choices
• d. joules

Two students are balancing on a 10m seesaw. The seesaw is designed so that each so that each side of the seesaw is 5m long. The students on the left weight 60kg and standing 3m away from the center. The student on the right weighs 45kg. The seesaw is parallel to the ground. Assume the board that makes the seesaw is massless.

• a. 4 m
• b. none of the choices
• c. 5 m
• d. 6 m

The word measurement is derived from the Greek word ______________.

• a. none of the choices
• b. metron
• c. metre
• d. meter

If a simple mechanical body feels neither linear nor angular acceleration, it is considered to be in , and it will remain in that state indefinitely until it is disturbed by an external force.

• EQUILIBRIUM

There are only two types of SI units, based and derived units.

• True
• False

In practice, every three calendar years will have 365 days, and every fourth year is a “leap year”, which has 366 days, to make up for the extra quarter day over four years.

• True
• False

What is Friends language name of International System of Unit

• a. None of the choices
• b. International Systeme
• c. Systeme d' Unites
• d. Systeme International d' Unites

Convert 0.4 m to km (answer is in numerical form only)

• 0.0004

Convert 400.00 US Quart to US Gallon (answer is in numerical value)

• 100

A chandelier hangs from the ceiling on two cords. Calculate the tension in the two cords (F1 and F2). (Numerical Only)

• 1130

An airplane accelerates down a runway at 3.20 m/s2 for 32.8 s until is finally lifts off the ground. Determine the distance traveled before takeoff.

• a. 1725 m
• b. none of the choices
• c. 1715 m
• d. 1720 m

It is a bob suspended from a very light string or rod.

• a. none of the choices
• b. waves
• c. period
• d. simple pendulum

The  is the number of seconds it takes to make one complete vibration or one up and down motion.

If the polygon is closed, the resultant is a vector of zero magnitude and has no direction. This is called the ________ vector.

• a. full
• b. none of the choices
• c. both A and B
• d. empty

The Greek letter  denotes the summation of what comes after — the summation of forces.

• SIGMA

A 90kg person stands on a scale and tries to pull himself up off the scale. The person is unable to pull himself off the scale but the scale reading decreases down to 23kg. What force is he exerting? (Numerical only)

• 660

Convert the temperature given in the Celsius scale to the Fahrenheit scale: (answer is in numerical form only) 45° C __ ° F

• 113

Equilibrium is the tendency of a force to cause an object to rotate about an axis.

• True
• False

The force applied is one of the three quantities of torque acceleration.

• True
• False

122 meter = ______________ inches ?

• a. 48031.5 inches
• b. 4803.15 inches
• c. 480.315 inches
• d. none of the choices

An object that is falling under the sole influence of gravity.

• a. free fall
• b. range
• c. free falling object
• d. none of the choices

Equilibrium concepts are also utilized to calculate the result of , non-concurrent systems of forces.

• NON-PARALLEL

 do not have such constraints.

• ANALYTICAL METHODS

 are forces that run parallel to one other but do not intersect or form a parallel at a single point.

The three forces in the figure create a vertical resultant acting through point A. If T is known to be 361 lb., compute the values of F and P.

• a. none of the choices
• b. F = 253.29 lb , P = 507.06 lb
• c. F = 2532.9 lb , P = 50.706 lb
• d. F = 25.329 lb , P = 507.06 lb

A millimeter is about the thickness of a dime.

• True
• False

Convert the temperature given in the Celsius scale to the Fahrenheit scale: (answer is in numerical form only) 25° C __ ° F

• 77

In the United States, the National Physical Laboratory (NPL), a division of United States Department of Commerce, regulates commercial measurements.

• True
• False

Quantities that are fully described by both magnitude and a direction.

• a. acceleration
• b. scalars
• c. velocity
• d. vectors

A biker accelerates at 2 m/s2 for 3 seconds while cycling at 10 m/s. After the acceleration, what is their velocity? During the acceleration, how much ground did they cover?

• 37 m
• 38 m
• 39 m

 are straightforward and straightforward, but their precision is limited to that of drawing equipment.

• GRAPHICAL METHODS

Convert 0.4 km to m (answer is in numerical form only)

• 400

________________ is defined as the forces which lies in the line of activity but do not intersect or forms a parallel at a common point.

• none of the choices
• Non-Concurrent Forces
• Parallel Forces
• Forces

It is tendency of a force to cause an object to rotate abut an axis.

• a. Equilibrium
• b. Vectors
• c. Torque
• d. Resultant

Laws to regulate measurement were originally developed to prevent fraud.

• True
• False

Convert 400.0 m to mm (answer is in numerical form only)

• 400000

 are quantities that may be completely defined by a single magnitude (or numerical value).

• SCALARS

What is the magnitude of the sum of the two forces shown in the diagram below? fig2

• a. 46 N
• b. 102 N
• c. 142 N
• d. 137 N

Once we know how long the projectile stayed in the air, finding the _____________ from the horizontal motion is simple.

• a. free falling object
• b. range
• c. none of the choices
• d. trajectory height

The word "" is used to characterize equilibrium circumstances.

• BALANCED

100 m = ______ yrd ?

• a. 361.109 yrd
• b. 190.361 yrd
• c. 111.36 yrd
• d. 109.361 yrd

If ∠A = 89 o and ∠C = 56o, find the value of ∠B.

• a. 25
• b. 35
• c. 55
• d. 45

Does a bridge anchored resting on two pillars have any torque?

• a. No, Bridge can't have torque
• b. Yes, but it is at equilibrium
• c. No, it isn't moving
• d. Yes, but it will soon break because of the torque

Because potential and kinetic energy are different elements of the same substance, the name "" was coined (mechanical energy).

• ENERGY

If three motion parameters are known, kinematic equations can be used to determine the value of an unknown motion parameter. The  of a freefall motion is frequently known.

• ACCELERATION

All free-falling objects (on Earth) accelerate at a rate of _____________.

• a. none of the choices
• b. 98m/s2
• c. 9.8m/s
• d. 9.8m/s2

Calculate the absolute pressure at an ocean depth of 1.0 x 10³ m. Assume that the density of the water is 1.025 x 10³ kg/m³ and that Po = 1.01 x 10^5 Pa.

• 2.01 x 10^7
• 3.03 x 10^7
• 2.01 x 10^8
• 3.01 x 10^7

The ______ in simple harmonic motion is proportional and opposite to the displacement.

• a. period
• b. acceleration
• c. displacement
• d. angular harmonic motion

???? is the angle between the force vector and the lever arm vector.

• True
• False

The term torque was introduced into English scientific literature by Lord Kevin, in 1884.

• True
• False

It is autonomous of the body’s mass.

• a. projectile
• b. free fall
• c. free falling object
• d. none of the choices

The motion of a body which repeats itself at regular intervals of time or period.

• a. displacement
• b. periodic motion
• c. none of the choices
• d. simple harmonic motion

When elastic bodies vibrate they produce the simplest type of periodic motion.

• a. simple harmonic motion or SHM
• b. simple pendulum
• c. period
• d. none of the choices

 refers to the distance between the center position and the rest position of the mass.

• DISPLACEMENT X

Standard unit of mass in metric system.

• a. milligram
• b. decigram
• c. gram
• d. centigram

If a body is in rest or in uniform velocity, it is said to be in

• a. Equilibrium
• b. Uniform motion
• c. Rest
• d. Constant force

Determine the resultant of the force system shown in the figure and its x and y intercepts.

• a. 161.314 lb
• b. none of the choices
• c. 163.114 lb
• d. 164.311 lb

The total of the forces that make up the pair is  in algebra.

• ZERO

The length of the arrow in a scaled vector diagram represents the  of a vector. The arrow is drawn at a specific length according to a scale.

To find the resultant vector's magnitude, use the _________ theorem

• a. Parallelogram
• b. Polygon
• c. Pythagorean
• d. Trigonometric

250 kelvin = ___________ centigrade ?

• a. none of the choices
• b. 23.15 centigrage

Convert the temperature given in the Fahrenheit scale to the Celsius scale: (answer is in numerical form only) 68° F __ ° C

• 20

The mathematical quantities that are used to describe the motion of objects can be divided into three categories.

• True
• False

The  is the maximum displacement.

• AMPLITUDE R

Cords are loop around a small spacer separating two cylinders each weighing 400 lb. and pass, as shown in the fig-12 from the LIST OF FIGURE in Week-1 over a frictionless pulley to weights of 200 lb. and 400 lb. Determine the angle θ.

• a. θ = 70 degrees
• b. none of the choices
• c. θ = 60 degrees
• d. θ = 76 degrees

700 yard = __________ cm ?

• a. 64,008 cm
• b. 65,008 cm
• c. 64,800 cm
• d. 65,800 cm

280 feet = _____________ meter ?

• a. 853.44 meter
• b. 85.344 meter
• c. 8534.4 meter
• d. none of the choices

Convert 50 L to mL (answer is in numerical form only)

• 50000

The maximum value of the sine function.

• a. 3 or three
• b. 4 or four
• c. 1 or one
• d. 2 or two

Work and energy are , but force is a vector.

• SCALARS

350 Fahrenheit = _____________ Celsius

• a. 160.76
• b. 176.667
• c. 167.66
• d. 17.67

An object thrown upward with velocity will rise to a height.

• a. free fall
• b. trajectory height
• c. motion
• d. range

The resultant's position can be determined using the principles of .

• MOMENTS

Convert 50 mL to L (answer is in numerical form only)

• 0.05

120 centigrade = _____________ Fahrenheit ?

• a. 244 Fahrenheit
• b. 248 Fahrenheit
• c. 482 Fahrenheit
• d. 842 Fahrenheit

What is the acronym of NIST?

• a. National Institute of Standards and Technology
• b. None of the choices
• c. Nation Institute of Standard and Technology
• d. National Institute of Science and Technology

The temperature unit commonly used in USA is Centigrade.

• True
• False

Free-falling objects always encounter air resistance.

• True
• False

5.2 L = ________ gal ?

• a. 3.71 gal
• b. 52.13 gal
• c. 1.37 gal
• d. 2.53 gal

The  is the perpendicular distance (a) between the lines of action of two equal and opposite parallel forces.

• ARM OF THE COUPLE

A red car is stopped at a red light. As the light turns green, it accelerates forward at 2.00 m/s 2 . At the exact same instant, a blue car passes by traveling at 62.0 km/h. When and how far down the road will the cars again meet?

• 295 m
• 296 m
• 297 m

A uniform rod of length 50cm and mass 0.2kg is placed on a fulcrum at a distance of 40cm from the left end of the rod. At what distance from the left end of the rod should a 0.6kg mass be hung to balance the rod?

• a. 45 cm
• b. 4.5 cm
• c. none of the choices
• d. 54 cm

The  value is denoted by the symbol vi.

• INITIAL VELOCITY

25.8 lbs = ___________ grams ?

• a. 11.70 grams
• b. 1170.268 grams
• c. 11702.68 grams
• d. none of the choices

 throws a pile of roof shingles from an 8.52-meter-high roof.

• LUKE AUTBELOE

 is the motion of a body that repeats itself at regular intervals of time or period.

• PERIODIC MOTION

One ____________ would be to resolve a pair of forces using the parallelogram or triangle method into a resultant.

• a. graphical method
• b. logical method
• c. none of the choices
• d. algebraic method

Determine the magnitude of P and F necessary to keep the concurrent force system in the figure in equilibrium. NOTE : see fig-8 from the LIST OF FIGURE in week-1

• P = 133.25 N, F = -86.37 N
• none of the choices
• P = -133.25 N, F = 86.37 N
• P = -13.325 N, F = -86.37 N

One atmosphere is equivalent to 14.7 pounds per square inch.

• True
• False

The cable and boom shown in the figure support a load of 600 lb. Determine the tensile force T in the cable and the compressive for C in the boom. NOTE : see fig-5 from the LIST OF FIGURE in Week-1

• a. T = 439.24 lb , C = 537.94 lb
• b. T = 49.24 lb , C = 57.94 lb
• c. T = 43.24 lb , C = 53.94 lb
• d. none of the choices

The symbol for torque is typically,

• True
• False

The  rule may be used to derive the vector notation of angular velocity and angular acceleration, just as it can for angular displacement.

• RIGHT-HAND

The pressure units commonly used in the USA include the inch of mercury and the atmosphere (29.92 inches of mercury).

• True
• False

If the body is in equilibrium under the action of a number of the forces, then the algebraic sum of the moments of the forces about any point is equal to one.

• True
• False

Types of Si units which is the simple measurement for time, length, mass, temperature, amount of substance, electric current, and light intensity.

• a. Metric unit
• b. derived units
• c. None of the choices
• d. Base unit

560 Kelvin = ______________ Celsius

• a. 288.65
• b. 286.85
• c. 200.85
• d. 256.88

Two weightless bars pinned together as shown in the fig-15 from the LIST OF FIGURE in Week-1 support a load of 35 kN. Determine the forces P and F acting respectively along bars AB and AC that maintain equilibrium of pin A.

• a. P = 90.14 kN, F = 64.03 kN
• b. P = 900.14 kN, F = 4.03 kN
• c. none of the choices
• d. P =9.14 kN, F = 6.03 kN

Since all of these forces are not entirely parallel, the position of the resultant can be established using the ________ or ________ methods.

• a. graphical, logical
• b. none of the choices
• c. analytical, graphical
• d. graphical, algebraic

In order to add ______ quantities, one has merely to make the algebraic addition.

• a. Vector
• b. Resultants
• c. Scalar
• d. magnitude

Which of the following is not a scalar quantity?

• velocity
• potential energy
• work
• kinetic energy

Which of the following statements is false?

• Distance, velocity and acceleration are all vector quantities
• Scalar quantities have size or magnitude only
• Mass, length and time are all scalar quantities
• Vector quantities have both magnitude and direction

The same  principles drive accelerated translation and uniformly accelerated rotation arcs.

• KINEMATICS

standard unit of volume in metric system.

• a. liter
• b. kiloliter
• c. milliliter
• d. centiliter

It is made of base unit for example, density.

• a. Metric units
• b. Base units
• c. None of the choices
• d. derived units

The resultant force (the vector sum) should be  if all the forces are summed together as vectors.

• 0 NEWTON

If there is a great number of forces, the ___________ to this system would potentially be simpler if the forces that are applied to the system are easy to break into components.

• a. logical solution
• b. algebraic solution
• c. none of the choices
• d. graphical solution

The moment of the resultant of a system of forces with respect to any axis or point is equal to the vector sum of the moments of the individual forces of the system with respect to the same access or point.

• True
• False

The number of seconds it will require to make one complete vibration or one up and down is called?

• a. none of the choices
• b. displacement
• c. period
• d. waves

Convert 50 mL to L (answer is in numeric form only)

• 0.05

Convert 40 mm to m (answer is in numerical form only)

• 0.04

In reality we are dealing with two sets of independent equations for the x and y directions and can envision the problem as a superposition of two completely independent motions that together are equivalent to the projectile motion.

• True
• False

Convert 4.0 m to cm (answer is in numerical form only)

• 400

1.15 seconds apart, two balls are hurled upwards from the same position. The first ball had a 15.0 m/s initial velocity, whereas the second had a 12.0 m/s initial velocity. What is the height at which they collide?

• 7.30 m
• 7.31 m
• 7.32 m

100 inches = ____________ meter

• a. 2.54 meter
• b. 5.24 meter
• c. 25.4 meter
• d. none of the choices

What is the acronym of NPL?

• a. National Power Laboratory
• b. National Physical Laboratory
• c. Nation Physical Laboratory
• d. None of the choices

The resultant and equilibrant of several sets of such known forces are determined by both graphical and analytical methods.

• a. method
• b. none of the choices
• c. object
• d. theory

Newton's  describes an object at rest.

• FIRST LAW OF MOTION

The angular velocity of  is constant in size and direction.

A car starts from rest and accelerates uniformly over a time of 5.21 seconds for a distance of 110 m. Determine the acceleration of the car.

• a. 8.10 m/s2
• b. none of the choices
• c. 81.10 m/s2
• d. 810 m/s2

A race car accelerates uniformly from 18.5 m/s to 46.1 m/s in 2.47 seconds. Determine the acceleration of the car.

• a. 12.1 m/s2
• b. none of the choices
• c. 11.2 m/s2
• d. 1.12 m/s2

Convert 5.0 in to cm (answer is in numeric form only)

• 12.7

120 lbs = _____ kg?

• a. 54.4 kg
• b. 53.54 kg
• c. 45.45 kg
• d. 40.40 kg

The effect of a certain non-concurrent force system is defined by the following data: summation of fx=90kN, summation of fy=-60kN, and summation of Mo=360kN counter clockwise. Determine the point at which the resultant intersects the x-axis. Note: see Fig 1, from the LIST OF FIGURE from week-1.

• a. none of the choices
• b. 8 m
• c. 7 m
• d. 6 m

A  is a plane angle that is subtended by an arc with the same length as the radius.

The SI for torque is _______________.

• a. Meter
• b. Newton
• c. kg*m/s
• d. N⋅m

 are quantities with both a magnitude and a direction that are completely specified.

• VECTORS

The motion of objects can not be described by words

• True
• False

150 Fahrenheit =_______ kelvin?

• a. 706.38 kelvin
• b. 338.706 kelvin
• c. 87.33 kelvin
• d. 33.87 kelvin

The letter d represents .

• DISPLACEMENT

460 Kelvin = ____________ Fahrenheit

• a. 333.86
• b. 368.33
• c. 300.33
• d. 386.33

The magnitude of torque depends on two quantities only.

• True
• False

Equilibrium occurs when…

• a. all of the choices
• b. the net force on the object is zero.
• c. all the forces acting on an object are balanced.
• d. the sum of the upward forces equals the sum of the downward forces.

Add the following vectors and determine the resultant. 3.0 m/s, 45 deg and 5.0 m/s, 135 deg

• a. 5.38 m/s
• b. 3.38 m/s
• c. 6.38 m/s
• d. 4.38 m/s

Defined as the cross product of the lever arm distance vector and the force vector.

• a. velocity
• b. none of the choices
• c. acceleration
• d. equilibrium

Quantities that are fully described by a magnitude.

• a. vectors
• b. none of the choices
• c. scalars
• d. direction

Torque is defined as the cross product of the lever arm distance vector and the force vector.

• True
• False

In triangle DEF, side e = 8 cm, f = 10 cm, and the angle at D is 60°. Find side d.

• a. 8.57
• b. 7.21
• c. 9.17
• d. 8.24

A wheel 20cm starts from rest and rotates about horizontal axis through the center with a constant acceleration of 0.5 radian/sec2. A point from the circumference is directly at the right of the center of the wheel. After the end of 2 seconds, find the angular displacement of the point.

The motion is repeated in the same length of time.

• a. none of the choices
• b. angular harmonic motion
• c. acceleration
• d. period

It is The Internationally recognized standard metric system.

• a. English System
• b. International System of Units
• c. Metric System
• d. None of the choices

In 1894, Lord Kevin's brother, James Thompson, introduced the term torque into English scientific literature.

• True
• False

The algebraic sum of the moments of the forces about any point equals zero if the body is in  under the action of a number of forces.

• EQUILIBRIUM

The velocity at a specific instant is called instantaneous angular velocity, just like it is called .

 A parallel force system in which the forces are equal in magnitude but opposite in direction on the same plane but not at the same point.

• FORCE COUPLE

An Airplane accelerates down a runway at 3.20m/s2 for 32.8 s until is finally lifts off the ground. Determine the distance traveled before takeoff.

• 1721

The length of the lever arm connecting the axis to the point of the force application is one of the three quantities of torque magnitude.

• True

When two vectors don't share the same line of action, their vector sum is a  rather than an algebraic sum.

• GEOMETRIC SUM

The Principle of Moments, commonly known as Pythagorean's Theorem, holds that the sum of torques caused by many forces acting on a single point equals the torque caused by the sum (resultant) of the forces.

• True
• False

The resultant of non-concurrent force system is defined according to _________, __________, and ___________.

• a. none of the choices
• b. speed, inclination, position
• c. magnitude, inclination, position
• d. magnitude, displacement, position

170 centigrade = ______________ fahrenheit ?

• a. none of the choices
• b. 338 fahrenheit
• c. 383 fahrenheit
• d. 388 fahrenheit

Suzie applies a force of 40.0 N at an angle of 60 degrees up from the horizontal to a wooden rod using a spring scale. If she generates a torque of 73.0 N*m, how long was the rod?

• a. 211 m
• b. 2.11 m
• c. none of the choices
• d. 21.1 m

Two vectors A and B are added by drawing the arrows which represents the vector in such a way that the initial point of B is on the terminal point of A. The resultant C = A + B, is the vector from the initial point of A to the terminal point of B.

• a. Polygon Method
• c. Parallelogram Method
• d. Trigonometric Method

When displacement is plotted against time, the result is a harmonic cave, which is known as .

• SHM

The  is a handy tool for calculating the outcome of adding two (and only two) vectors that form a right angle. Only right-angled triangles will be able to use it.

• PYTHAGOREAN THEOREM

What is the standard unit of force?

• a. None of the choices
• b. Joules
• c. Newton
• d. Grams

It is the science of describing the motion of objects using words, diagrams, numbers, graphs, and equations

• a. kinematics
• b. dynamics
• c. none of the choices
• d. statics

The moment caused by the resultant force about some arbitrary point is equal to the sum of the moment due to all of the component forces of the system.

• True
• False

The tendency of a force to spin an item around an axis, fulcrum, or pivot is known as equilibrium, also known as moment or moment of force.

• True
• False

 is the science of utilizing words, pictures, figures, graphs, and equations to describe the motion of objects.

• KINEMATICS

If all of a body's pieces travel in circular sections around an axis, it is said to have pure  around that axis.

• ROTATION

The motion is known as  because it is repeated in the same length of time.

• ANGULAR HARMONIC MOTION

The small piston of a hydraulic lift has an area of 0.50 m². A car weighing 1.5 x 10^4N sits on a rack mounted on the large piston. The large piston has an area of 0.50 m². How large force must be applied to the small piston to support the car?

• 3.6 x 10^4 N
• 3.7 x 10^4 N
• 1.5 x 10^4 N
• 3.5 x 10^4 N

The letter a stands for the object's .

• ACCELERATION

Is defined as the projection of uniform circular motion on a straight line.

• a. none of the choices
• b. simple harmonic motion
• c. period
• d. motion

Convert 50 L to mL. (answer is in numeric form only)

• 50000

Any number of  couples can be reduced to a single couple, whose magnitude is the algebraic sum of all the couples' moments.

• COPLANAR

 values that rotate an object counterclockwise are positive, while its values that rotate an object clockwise are negative.

• TORQUES

A cylinder weighing 400 lb. is held against a smooth incline by means of the weightless rod AB in the figure. Determine the forces P and N exerted on the cylinder by the rod and the incline. NOTE : see fig-6 from the LIST OF FIGURE in Week-1

• a. P = 0.9038 N , N = 418.60 lb
• b. P = 90.38 N , N = 41.860 lb
• c. none of the choices
• d. P = 9038 N , N = 4186.0 lb

21 yard = __________ foot ?

• a. 6.3 foot
• b. 63 foot
• c. none of the choices
• d. 0.63 foot

175 m = _______________ yrd

• a. 195.382
• b. 193.182
• c. 198.132
• d. 191.382

500 g = __________ lbs?

• a. 9.1 lbs
• b. 1.1 lbs
• c. 11.1 lbs
• d. 10.1 lbs

68 fahrenheit = _______________ kelvin ?

• a. 293.15 kelvin
• b. 93.15 kelvin
• c. 23.15 kelvin
• d. none of the choices

A speed skater accelerates at 0.7 m/s2 for 5.2 seconds at the start of a race. At the end of the acceleration, what is their velocity? During the acceleration, how far did they travel?

• 28.2 m
• 28.4 m
• 28.6 m

Varignon’s Theorem states that the sum of torques due to several forces applied to a single point is equal to the torque due to the sum (resultant) of the forces.

• True
• False

When displacement is plotted against time, the result will be a _________?

• a. displacement
• b. period
• c. simple pendulum
• d. harmonic curve

What force is necessary to generate a 20.0 N*m torque at an angle of 50 degrees from along a 3.00 m rod?

• a. 3 N
• b. 2 N
• c. none of the choices
• d. 2.3 N

A  is simply a bob suspended on a thin rope or rod.

• PENDULUM

The symbol of torque is the Greek word for TAO.

• True
• False

"" means "at rest" or "stationary."

• STATIC

The term "" refers to a pendulum that swings once per second, giving it a two-second period.

• SECOND PENDULUM

Another example is the rotation of a gyroscope in some instances.  is the name for this type of motion.

• PRECESSION

120.5 centigrade = _______________ kelvin ?

• a. 93.65 kelvin
• b. none of the choices
• c. 33.65 kelvin
• d. 393.65 kelvin

The distance of the mass below or above from the center position, or rest position.

• a. waves
• b. periodic motion
• c. displacement
• d. none of the choices

The 300-lb force and the 400-lb force shown in the figure are to be held in equilibrium by a third force F acting at an unknown angle θ with the horizontal. Determine the values of F. NOTE : see fig-10 from the LIST OF FIGURE in Week-1

• none of the choices
• 5.31 lb
• F = 20.31 lb
• F = 205.31 lb

520 mm = _______________ inch

• a. 24.720
• b. 27.420
• c. 22.470
• d. 20.472

Small, externally caused displacements from  are said to be stable.

• EQUILIBRIUM

Kinematics is a discipline of  that deals with motion.

• MECHANICS

"Sum of all forces acting on a body is zero". This condition represents equilibrium's

• a. First condition
• b. Fourth condition
• c. Second condition
• d. Third condition

A bolt connecting the main and rear frame of a mountain bike requires of 15 N.m to tighten. If you are capable of applying 40N of force to a wrench in any given direction, what is the minimum length of the wrench that will result in the required torque?

• a. none of the choices
• b. 0.375 m
• c. 3.75 m
• d. 37.5 m

Convert the temperature given in the Celsius scale to the Fahrenheit scale: (answer is in numerical form only) 0° C __ ° F

• 32

The constant k is called the spring's force constant or "" because it relies on the spring.

• COEFFICIENT OF STIFFNESS

Standard unit of length in metric system.

• a. decimeter
• b. centimeter
• c. kilometer
• d. None of the choices

In a certain non-concurrent force system it is found that summation of fx=-80lb, summation of fy=160lb and summation Mo=480lb-ft in a counterclockwise sense. Determine the point at which the resultant intersects the y-axis. NOTE: see figure 2 from the LIST OF FIGURE in Week-1

• a. 6 ft
• b. none of the choices
• c. 7 ft
• d. 8 ft

This type of system was exemplified by the  system. Because none of these forces are perfectly parallel, the resultant's position can be determined using graphical or algebraic methods.

• PARALLEL FORCE

It is the world’s most widely used system of units, both in everyday commerce and in science.

• a. Metric system
• b. None of the choices
• c. English system
• d. SI units

A sprinter accelerates at 4 m/s2 for 3 seconds before reaching maximum speed in a 100 m race. What is their finishing time if they keep their top speed all the way to the end?

• 12 sec
• 10 sec
• 9 sec

A 5.0 m-long uniform beam is held in position by a cord as shown in the diagram. If the tension in the cord is 8.0 N, what is the weight of the beam?

• a. 4.8 N
• b. 8.0 N
• c. 18 N
• d. 9.6 N

150 gram = _______________ kilogram ?

• a. 0.15 kg
• b. none of the choices
• c. 15 kg
• d. 1.5 kg

The sum of the clockwise moments equals sum of the anticlockwise moments when the body is in equilibrium.

• True
• False

When an object is at equilibrium, the sum of all torques on it is .

• ZERO

When the cycle in harmonic curve is repeated successively the result will be a series of__________?

• a. waves
• b. period
• c. displacement
• d. none of the choices

What is the acronym of BTU in pressure?

• a. British Temperature Unites
• b. British Thermal Units
• c. none of the choices
• d. British temperature Unites

The angle between the two Force is scalar is one of the three quantities of torque magnitude.

• True
• False

180 kelvin = ____________ fahrenheit ?

• a. 135.67 fahrenheit
• b. 13.567 fahrenheit
• c. none of the choices
• d. 1357.7 fahrenheit

Convert 40.0 m to mm (answer is in numerical form only)

• 40000

A body at rest or moving with uniform velocity will have acceleration

• a. max
• b. min
• c. 0
• d. 1

86.3 liter = ____________ gal ?

• a. 2.279 gal
• b. 22.798 gal
• c. none of the choices
• d. 227.98 gal

To satisfy first condition of equilibrium, if rightward forces are positive, leftward forces must be:

• a. positive
• b. halved
• c. negative
• d. doubled

At sea level, the freezing temperature of water is 32 degrees Fahrenheit and the boiling point of water is 212 degrees Fahrenheit.

• True
• False

If the centre of gravity of an object which is slightly disturbed is raised and the object returns to its original position when the disturbing force is removed, the object is said to be in

• static equilibrium
• unstable equilibrium
• neutral equilibrium
• stable equilibrium

50 kg = ____ g ?

• a. 51,000 g
• b. 52,000 g
• c. 40,000 g
• d. 50,000 g

 motion is similar to precession.

• CURVILINEAR TRANSLATORY

If net force acting on body is zero then body is said to be.

• a. not in equilibrium
• b. Imbalanced
• c. In equilibrium
• d. none of the choices

185 fahrenheit = __________ centigrade ?

• d. none of the choices

Convert 40 m to mm (answer is in numerical form only)

• 40000

550 m =________ in ?

• a. 23.6535 in
• b. 23,653.5 in
• c. 21,653.5 in
• d. 21.6535 in

A single force cannot keep a couple in equilibrium. However, it can only be balanced by a handful of  senses.

• OPPOSITE

A feather is dropped on the moon from a height of 1.40 meters. The acceleration of gravity on the moon is 1.67 m/s2. Determine the time for the feather to fall to the surface of the moon.

• a. 1.29 sec
• b. none of the choices
• c. 1.39 sec
• d. 13.9 sec

Three forces act on a point: 3 N at 0°, 4 N at 90°, and 5 N at 217°. What is the net force?

• a. 2.1 N, 125 degrees
• b. 1.4 N, 125 degrees
• c. 1.4 N, 135 degrees
• d. 2.1 N, 135 degrees

A physical quantity which has direction as well as magnitude is known as a:

• vector
• scalar
• force
• weight

Convert 1 US Gallon to L (answer is in numeric form only and round it off until 2 decimal places)

• 3.78

Forces P and F acting along the bars shown in the figure maintain equilibrium of pin A. Determine the values of P. NOTE : see fig-14 from the LIST OF FIGURE in Week1

• a. none of the choices
• b. P = 4.76 kN
• c. P = -14.76 kN
• d. P = 14.76 kN

When an object is at rest and in a condition of equilibrium, we refer to it as being in "."

• STATIC EQUILIBRIUM

Such an object will rise until its velocity is ______________.

• a. 2
• b. 0 or zero
• c. 3
• d. 5

Determine the values of α and θ so that the forces shown in the figure will be in equilibrium.

• a. α =46.57 degrees and θ = 28.96 degrees
• b. α =4.57 degrees and θ = 58.96 degrees
• c. α =6.57 degrees and θ = 2.96 degrees
• d. none of the choices

The vectors are translated, to a common origin.

• a. Parallelogram Method
• b. Sine and Cosine Method
• c. Trigonometric Method
• d. Polygon Method

A 300-lb box is held at rest on a smooth plane by a force P inclined at an angle θ with the plane as shown in the figure. If θ = 45°, determine the value of P and the normal pressure N exerted by the plane. NOTE : see fig 7 from the LIST OF FIGURE in Week-1

• P = 21213 lb , N = 40.981 lb
• P = 2121.3 lb , N = 40981 lb
• P = 212.13 lb , N = 409.81 lb
• none of the choices

What is the boiling point of water at sea level?

• b. none of the choices

You are helping your aunt move a piano on wheels from one room to another. When you push the piano horizontally, it moves at constant speed. What can you say about the piano?

• It is in equilibrium because it doesn’t experience a friction force.
• It is in equilibrium because it experiences net force opposite to the friction force
• It is in static equilibrium.
• It is in dynamic equilibrium.

The figure represents the concurrent force system acting at a joint of a bridge truss. Determine the value of P and F to maintain equilibrium of the forces. NOTE : see fig-9 from the LIST OF FIGURE in Week-1

• none of the choices
• P = 265.45 lb, F = 472.44 lb
• P = 65.45 lb, F = 12.44 lb
• P = 165.45 lb, F = 412.44 lb

100 cm = ______ in?

• a. 38 in
• b. 37.39 in
• c. 35 in
• d. 39.37 in