Energy and Momentum Quizzes: Test Your Understanding

Question 1

Which of the following is a type of stored energy?

Accepted Answer

Potential energy

Answer

Kinetic energy

Answer

Thermal energy

Answer

Sound energy

Question 2

Which law of motion describes how the force acting on an object is related to its acceleration?

Accepted Answer

Newton's Second Law

Answer

Newton's First Law

Answer

Newton's Third Law

Answer

Newton's Law of Universal Gravitation

Question 3

The momentum of an object is?

Accepted Answer

Mass × Velocity

Answer

Mass × Acceleration

Answer

Velocity × Acceleration

Answer

Force × Time

Question 4

According to the Law of Conservation of Momentum, the total momentum of a closed system:

Accepted Answer

Remains constant if there are no external forces acting on the system

Answer

Increases if there are external forces acting on the system

Answer

Decreases if there are external forces acting on the system

Answer

Increases in proportion to the number of objects in the system

Question 5

The kinetic energy of an object depends on:

Accepted Answer

Mass and velocity

Answer

Mass and acceleration

Answer

Velocity and acceleration

Answer

Force and time

Question 6

Which of the following is a unit of power?

Accepted Answer

Watt

Answer

Joule

Answer

Kilogram

Answer

Metre

Question 7

An elastic collision is one in which:

Accepted Answer

Both momentum and energy are conserved.

Answer

Only momentum is conserved.

Answer

Only energy is conserved.

Answer

Neither momentum nor energy is conserved.

Question 8

In a perfectly inelastic collision, the objects:

Accepted Answer

Stick together and move with a common velocity.

Answer

Bounce off each other with the same velocity.

Answer

Move in opposite directions with equal velocities.

Answer

Come to a complete stop immediately.

Question 9

Which of the following quantities is NOT conserved in an isolated system?

Accepted Answer

Velocity

Answer

Energy

Answer

Momentum

Answer

Angular momentum

Question 10

The work done by a constant force on an object is equal to:

Accepted Answer

Force multiplied by distance moved in the direction of the force

Answer

Force multiplied by time

Answer

Distance multiplied by time

Answer

Force multiplied by velocity

Question 11

In an elastic collision between two objects, which of the following quantities remains constant?

Accepted Answer

Total momentum of the system

Answer

Total energy of the system

Answer

Kinetic energy of the individual objects

Answer

Potential energy of the individual objects

Question 12

The kinetic energy of an object is proportional to:

Accepted Answer

The square of its velocity

Answer

Its mass only

Answer

Its velocity only

Answer

The square of its mass

Question 13

The work done by a force is equal to:

Accepted Answer

The force multiplied by the displacement in the direction of the force.

Answer

The force multiplied by the displacement in any direction.

Answer

The displacement multiplied by the force in the direction of the displacement.

Answer

The displacement multiplied by the force in any direction.

Question 14

As a pendulum swings from one side to the other, which type of energy conversion is taking place?

Accepted Answer

Potential energy to kinetic energy and back

Answer

Kinetic energy to potential energy and back

Answer

Work to kinetic energy and back

Answer

Kinetic energy to work and back

Question 15

Which of the following is not a recognized type of friction?

Accepted Answer

Magnetic friction

Answer

Static friction

Answer

Dynamic friction

Answer

Rolling friction

Question 16

The moment of inertia of a body is a measure of its:

Accepted Answer

Resistance to rotation

Answer

Mass

Answer

Velocity

Answer

Linear momentum

Question 17

Which of the following is NOT a form of mechanical energy?

Accepted Answer

Thermal energy

Answer

Kinetic energy

Answer

Potential energy

Answer

Gravitational potential energy

Question 18

Which of the following is a vector quantity?

Accepted Answer

Velocity

Answer

Mass

Answer

Volume

Answer

Temperature

Question 19

Which of the following is a unit of energy?

Accepted Answer

Joule

Answer

Newton

Answer

Watt

Answer

Kilogram

Question 20

Which of the following is an example of an inelastic collision?

Accepted Answer

A car colliding with a wall

Answer

A ball bouncing off a surface

Answer

A skater gliding on ice

Answer

A pendulum swinging

Question 21

Which of the following is a unit of power?

Accepted Answer

Watt

Answer

Joule

Answer

Newton

Answer

Kilogram

Question 22

Calculate the kinetic energy of a 1000-kilogram car traveling at 10 meters per second.

Accepted Answer

50,000 joules

Answer

50 joules

Answer

500,000 joules

Question 23

A car travels at a constant speed along a circular path. If the car's speed doubles, how will the centripetal force acting on the car change?

Accepted Answer

The centripetal force will increase four times.

Answer

The centripetal force will remain the same.

Answer

The centripetal force will decrease by half.

Question 24

Which of the following statements about energy is accurate?

Accepted Answer

Energy can be transformed from one form to another

Answer

Energy can be generated or eliminated

Answer

Energy is a way of measuring force

Answer

Energy does not have units

Question 25

A ball is propelled vertically upward. At its peak trajectory, what is true?

Accepted Answer

Kinetic energy is at its minimum, and potential energy is at its maximum

Answer

Kinetic energy is at its maximum, and potential energy is at its minimum

Answer

Both kinetic and potential energy are at their minimum

Answer

Both kinetic and potential energy are at their maximum

Question 26

Which of the following choices is the unit of momentum?

Accepted Answer

Kilogram-meter per second

Answer

Joule

Answer

Newton-meter

Answer

Watt

Question 27

A rocket engine operates on the principle of:

Accepted Answer

Converting chemical energy into kinetic energy

Answer

Preserving momentum

Answer

Utilizing the force of gravity

Answer

Applying Bernoulli's principle

Question 28

The work accomplished by a force is calculated as:

Accepted Answer

Force multiplied by displacement in the direction of the force

Answer

Force multiplied by displacement perpendicular to the force

Answer

Force multiplied by time

Answer

Force multiplied by velocity

Question 29

Which of the following possesses the greatest kinetic energy?

Accepted Answer

A car traveling at 60 mph

Answer

A person running at 10 mph

Answer

A ball thrown at 20 mph

Answer

A stationary object

Question 30

Which formula calculates the work done by a force that changes in strength and direction as an object moves along a curved path?

Accepted Answer

W = ∫ F * ds

Answer

W = F * d

Answer

W = F * v

Answer

W = ½ * mv^2

Question 31

Which of the following is NOT a form of energy?

Accepted Answer

Impulse

Answer

Kinetic energy

Answer

Potential energy

Answer

Chemical energy

Question 32

Which of the following states the principle of conservation of energy?

Accepted Answer

The total energy in an isolated system remains constant.

Answer

The total momentum in an isolated system remains constant.

Answer

Energy can be created or destroyed in a system.

Answer

Momentum can be created or destroyed in a system.

Question 33

Which of the following is the SI unit of momentum?

Accepted Answer

Newtons

Answer

Joules

Answer

Kilograms per second

Answer

Metres per second squared

Question 34

Which of the following is an example of an inelastic collision?

Accepted Answer

A car crashing into a tree

Answer

Two billiard balls colliding

Answer

A ball bouncing off a wall

Answer

A pendulum swinging

Question 35

The work done by a force is given by:

Accepted Answer

Force × Distance moved in the direction of the force

Answer

Force × Distance moved perpendicular to the force

Answer

Force × Time taken to move the object

Answer

Force × Velocity of the object

Question 36

In an elastic collision, which of the following is conserved?

Accepted Answer

Kinetic energy and momentum

Answer

Momentum only

Answer

Neither kinetic energy nor momentum

Answer

Kinetic energy only

Question 37

Which of the following is a scalar quantity?

Accepted Answer

Energy

Answer

Acceleration

Answer

Momentum

Answer

Velocity

Question 38

In a perfectly inelastic collision, which of the following is not conserved?

Accepted Answer

Kinetic energy

Answer

Mass

Answer

Momentum

Answer

Total energy

Question 39

A car of mass 1200 kg collides head-on with a stationary car of mass 800 kg. The first car is traveling at 15 m/s before the collision. What is the velocity of the two cars immediately after the collision?

Accepted Answer

7.5 m/s

Answer

10 m/s

Answer

5 m/s

Answer

20 m/s

Question 40

Which of the following is a unit of energy?

Accepted Answer

Joule

Answer

Meter

Answer

Second

Answer

Newton