Question 1

What is rotational equilibrium?

Accepted Answer

When the net torque acting on an object is zero and the object is not rotating

Answer

When an object is rotating at an increasing speed

Answer

When an object is rotating at a constant speed

Answer

When an object is rotating at a decreasing speed

Question 2

What is torque?

Accepted Answer

The measure of the force that causes an object to rotate around an axis or pivot point

Answer

The measure of an object's rotational acceleration

Answer

The measure of an object's rotational speed

Answer

The measure of an object's linear speed

Question 3

What is the formula for torque?

Accepted Answer

Force x Distance x Sin(theta)

Answer

Force x Time x Sin(theta)

Answer

Force x Distance x Cos(theta)

Answer

Force x Distance x Tan(theta)

Question 4

What is a moment arm?

Accepted Answer

The perpendicular distance between the line of action of a force and the pivot point

Answer

The horizontal distance between the line of action of a force and the pivot point

Answer

The parallel distance between the line of action of a force and the pivot point

Answer

The vertical distance between the line of action of a force and the pivot point

Question 5

What is the equation for rotational speed?

Accepted Answer

Angular displacement x Time

Answer

Angular velocity x Time

Answer

Linear velocity x Time

Answer

Angular acceleration x Time

Question 6

What is angular displacement?

Accepted Answer

The angle through which an object rotates in a given time

Answer

The time it takes for an object to travel a certain distance

Answer

The rate at which an object changes its velocity

Answer

The distance an object travels in a straight line in a given time

Question 7

What is angular velocity?

Accepted Answer

The rate of change of angular displacement with respect to time

Answer

The rate of change of linear displacement with respect to time

Answer

The rate of change of linear velocity with respect to time

Answer

The rate of change of linear acceleration with respect to time

Question 8

What is the principle of moments?

Accepted Answer

The sum of the clockwise moments about a pivot point is equal to the sum of the anticlockwise moments about the same pivot point

Answer

The sum of the linear speeds about a pivot point is equal to the sum of the linear accelerations about the same pivot point

Answer

The sum of the rotational speeds about a pivot point is equal to the sum of the rotational accelerations about the same pivot point

Answer

The sum of the forces about a pivot point is equal to the sum of the distances about the same pivot point

Question 9

What is a pivot point?

Accepted Answer

A fixed point around which an object rotates

Answer

A point where an object is at rest

Answer

A point where an object is accelerating

Answer

A point where an object is in motion

Question 10

What is the unit of torque?

Accepted Answer

Newton-meter (Nm)

Answer

Newton per meter (N/m)

Answer

Meter per second (m/s)

Answer

Joule per second (J/s)

Question 11

What is rotational kinematics?

Accepted Answer

The study of motion in a circular path

Answer

The study of motion in a random pattern

Answer

The study of motion that is not circular

Answer

The study of motion in a straight line

Question 12

What is the unit for rotational velocity?

Accepted Answer

Radians per second

Answer

Meters per second

Answer

Meters per second squared

Answer

Radians

Question 13

What is the formula for angular displacement?

Accepted Answer

θ = s/r

Answer

θ = v/r

Answer

θ = r/s

Answer

θ = a/r

Question 14

What is the formula for angular velocity?

Accepted Answer

ω = Δθ/Δt

Answer

ω = Δs/t

Answer

ω = r/s

Answer

ω = Δv/Δt

Question 15

What is the formula for angular acceleration?

Accepted Answer

α = Δω/Δt

Answer

α = ω/Δt

Answer

α = Δs/t

Answer

α = Δv/Δt

Question 16

What is the unit for moment of inertia?

Accepted Answer

Kilogram meters squared

Answer

Meters squared per second

Answer

Kilograms per meter

Answer

Kilograms per second

Question 17

What is the formula for torque?

Accepted Answer

τ = rFsinθ

Answer

τ = rFsint

Answer

τ = rFcost

Answer

τ = rFcosθ

Question 18

What is the formula for rotational kinetic energy?

Accepted Answer

Krot = (1/2)Iω^2

Answer

Krot = (1/2)mv^2

Answer

Krot = mv^2

Answer

Krot = mgh

Question 19

What is the formula for power in rotational motion?

Accepted Answer

P = τω

Answer

P = αω

Answer

P = Fv

Answer

P = mv^2

Question 20

What is the formula for centripetal force?

Accepted Answer

F = mv^2/r

Answer

F = ma

Answer

F = ωr

Answer

F = θ^2r

Question 21

What is the definition of circular motion?

Accepted Answer

Motion in which an object moves in a circular path around a central point

Answer

Motion in which an object moves in a zigzag pattern

Answer

Motion in which an object moves in a straight path

Answer

Motion in which an object moves in a random pattern

Question 22

What is the unit of measurement for angular speed?

Accepted Answer

Radians per second

Answer

Meters per second

Answer

Meters squared per second

Answer

Seconds per meter

Question 23

What is the equation for centripetal acceleration?

Accepted Answer

a = v^2/r

Answer

a = v/r^2

Answer

a = r/v

Answer

a = r^2/v

Question 24

What is the direction of the centripetal force?

Accepted Answer

Towards the center of the circle

Answer

Away from the center of the circle

Answer

Tangential to the circle

Answer

Parallel to the circle

Question 25

What is the period of a circle?

Accepted Answer

The time it takes for one complete revolution

Answer

The radius of the circle

Answer

The distance around the circle

Answer

The speed of the object

Question 26

What is the relationship between angular velocity and period?

Accepted Answer

They are inversely proportional

Answer

There is no relationship between them

Answer

They are directly proportional

Answer

Angular velocity has no effect on period

Question 27

What is the equation for centripetal force?

Accepted Answer

F = ma

Answer

F = mr^2

Answer

F = md

Answer

F = mv^2

Question 28

What is the direction of the tangential velocity?

Accepted Answer

Tangential to the circle

Answer

Towards the center of the circle

Answer

Parallel to the circle

Answer

Away from the center of the circle

Question 29

What is the difference between tangential velocity and angular velocity?

Accepted Answer

Tangential velocity is the linear velocity of an object moving in a circle, while angular velocity is the rate at which an object rotates or revolves around a central point

Answer

There is no difference between them

Answer

Tangential velocity and angular velocity are the same thing

Answer

Tangential velocity is the rate at which an object rotates or revolves around a central point, while angular velocity is the linear velocity of an object moving in a circle

Question 30

What is the relationship between centripetal force and velocity?

Accepted Answer

Directly proportional

Answer

Centripetal force has no effect on velocity

Answer

Inversely proportional

Answer

There is no relationship between them

Question 31

What is the equation for the range of a projectile?

Accepted Answer

Range = (v^2/g)sin(2θ)

Answer

Range = (v^2/g)cos(θ)

Answer

Range = (v/g)sin(θ)

Answer

Range = (v^2/g)sin(θ)

Question 32

What is the acceleration due to gravity on Earth?

Accepted Answer

9.8 m/s^2

Answer

6.2 m/s^2

Answer

10.2 m/s^2

Answer

5.0 m/s^2

Question 33

What is the equation for the maximum height of a projectile?

Accepted Answer

H = (v^2/2g)sin^2(θ)

Answer

H = (v^2/g)cos(θ)

Answer

H = (v/g)sin(θ)

Answer

H = (v^2/2g)sin(θ)

Question 34

What is the angle of launch for maximum range?

Accepted Answer

45°

Answer

30°

Answer

60°

Answer

90°

Question 35

What is the equation for the time of flight of a projectile?

Accepted Answer

t = 2v sin(θ)/g

Answer

t = 2v cos(θ)/g

Answer

t = v cos(θ)/g

Answer

t = v sin(θ)/g

Question 36

What is the horizontal velocity of a projectile at its peak?

Accepted Answer

0 m/s

Answer

v sin(θ)

Answer

v

Answer

v cos(θ)

Question 37

What is the vertical acceleration of a projectile?

Accepted Answer

-9.8 m/s^2

Answer

5.0 m/s^2

Answer

0 m/s^2

Answer

9.8 m/s^2

Question 38

What is the equation for the maximum range of a projectile on level ground?

Accepted Answer

R = v^2/g

Answer

R = v/g

Answer

R = v^2

Answer

R = g/v

Question 39

What is the equation for the vertical velocity of a projectile at any point in its flight?

Accepted Answer

Vy = Vsin(θ) - gt

Answer

Vy = Vcos(θ) + gt

Answer

Vy = Vcos(θ) - gt

Answer

Vy = Vsin(θ) + gt

Question 40

What is the equation for the horizontal distance traveled by a projectile?

Accepted Answer

x = vxt

Answer

x = vt

Answer

x = vt^2

Answer

x = v/y

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