Momentum and Collisions: Interactive Learning Quizzes

Question 1

Define momentum.

Accepted Answer

The product of an object's mass and velocity

Answer

The measure of an object's resistance to changes in its motion

Answer

The force acting on an object over time

Answer

The energy stored in an object due to its motion

Question 2

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

Accepted Answer

Momentum

Answer

Kinetic energy

Answer

Total energy

Answer

Mass

Question 3

Which of the following devices utilizes the principle of momentum?

Accepted Answer

Rocket

Answer

Car engine

Answer

Electric motor

Answer

Solar panel

Question 4

A quantity that has only magnitude and not direction is called a:

Accepted Answer

Scalar quantity

Answer

Vector quantity

Answer

Tensor quantity

Answer

Pseudovector quantity

Question 5

Which scenario represents an inelastic collision?

Accepted Answer

A car crashing into a stationary object

Answer

A soccer ball bouncing off a wall

Answer

A billiard ball hitting another billiard ball

Answer

A rocket expelling exhaust gases

Question 6

In a rocket engine, the exhaust gases are expelled:

Accepted Answer

Opposite the direction of motion

Answer

In the direction of motion

Answer

Perpendicular to the direction of motion

Answer

At an angle to the direction of motion

Question 7

Which of the following factors does NOT affect the outcome of a collision?

Accepted Answer

Temperature of the environment

Answer

Mass of the colliding objects

Answer

Velocity of the colliding objects

Answer

Coefficient of restitution

Question 8

A ball of mass m is thrown with a velocity v. The momentum of the ball is:

Accepted Answer

mv

Answer

mv^2

Answer

1/2mv

Answer

1/2mv^2

Question 9

What is the direction of the impulse applied to an object?

Accepted Answer

Opposite to the direction of motion

Answer

Same as the direction of motion

Answer

Perpendicular to the direction of motion

Answer

Impulse has no specific direction.

Question 10

A car of mass 1000 kg is traveling at a speed of 20 m/s. What is its momentum?

Accepted Answer

20,000 kg m/s

Answer

500 kg m/s

Answer

2000 kg m/s

Answer

100 kg m/s

Question 11

A 5 kg ball and a 10 kg ball are moving towards each other with equal speeds. What will happen after the collision assuming the collision is perfectly inelastic?

Accepted Answer

Both balls will stick together and move at half their original speed.

Answer

The 5 kg ball will stop and the 10 kg ball will continue moving.

Answer

The 10 kg ball will stop and the 5 kg ball will continue moving.

Answer

Both balls will bounce back with the same speed.

Question 12

The coefficient of restitution is a measure of:

Accepted Answer

Elasticity of a collision

Answer

Inelasticity of a collision

Answer

Momentum of a collision

Answer

Energy of a collision

Question 13

Which of the following statements about momentum is true?

Accepted Answer

Momentum is a vector quantity.

Answer

Momentum is always positive.

Answer

Momentum is always zero.

Answer

Momentum is a scalar quantity.

Question 14

Two objects with different masses collide head-on. Which of the following statements about the conservation of momentum in this collision is true?

Accepted Answer

Momentum is always conserved in any collision, regardless of its nature.

Answer

Momentum is conserved only if the collision is perfectly elastic.

Answer

Momentum is conserved only if the objects have equal masses.

Question 15

Define momentum accurately.

Accepted Answer

The vector quantity measuring the motion of an object

Answer

The vector quantity measuring the mass of an object

Answer

The scalar quantity measuring the force on an object

Answer

The scalar quantity measuring the energy of an object

Question 16

Specify the unit of momentum in the International System of Units (SI).

Accepted Answer

Kilogram meter per second

Answer

Newton

Answer

Joule

Answer

Meter per second

Question 17

Identify the statement that does not describe a valid type of collision.

Accepted Answer

Plastic collision

Answer

Elastic collision

Answer

Inelastic collision

Answer

Perfectly elastic collision

Question 18

A 2 kg ball with an initial velocity of 3 m/s collides with a stationary 1 kg ball. Assuming an elastic collision, determine the final velocity of the 2 kg ball.

Accepted Answer

1.5 m/s

Answer

2 m/s

Answer

2.5 m/s

Answer

3 m/s

Question 19

For a perfectly elastic collision, what is the value of the coefficient of restitution?

Accepted Answer

1

Answer

0

Answer

2

Answer

3

Question 20

Which quantity is a vector quantity?

Accepted Answer

Displacement

Answer

Speed

Answer

Mass

Answer

Volume

Question 21

In an elastic collision, which quantities are conserved?

Accepted Answer

both momentum and kinetic energy

Answer

momentum only

Answer

kinetic energy only

Answer

neither momentum nor kinetic energy

Question 22

Which type of collision results in a reduction of kinetic energy?

Accepted Answer

inelastic collision

Answer

elastic collision

Answer

perfectly elastic collision

Answer

perfectly inelastic collision

Question 23

Which of the following does NOT influence the momentum of an object?

Accepted Answer

temperature

Answer

mass

Answer

velocity

Answer

acceleration

Question 24

In a rocket, how is momentum conserved during propulsion?

Accepted Answer

by expelling fuel in one direction

Answer

by burning fuel in a closed chamber

Answer

by absorbing energy from the surroundings

Answer

by creating a vacuum inside the rocket

Question 25

As a ball is thrown vertically upwards, its momentum at the highest point of its trajectory is:

Accepted Answer

zero

Answer

maximum

Answer

minimum

Answer

constant

Question 26

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

Accepted Answer

Both momentum and kinetic energy

Answer

Momentum only

Answer

Kinetic energy only

Answer

Neither momentum nor kinetic energy

Question 27

Which type of collision involves no loss of kinetic energy?

Accepted Answer

Elastic collision

Answer

Inelastic collision

Answer

Perfectly inelastic collision

Answer

Super elastic collision

Question 28

What is the impulse acting on a 5 kg object that changes its velocity from 10 m/s to 15 m/s?

Accepted Answer

25 N⋅s

Answer

10 N⋅s

Answer

50 N⋅s

Answer

100 N⋅s

Question 29

Which of the following applications of momentum conservation is used to propel rockets?

Accepted Answer

Conservation of linear momentum

Answer

Conservation of angular momentum

Answer

Conservation of energy

Answer

Conservation of mass

Question 30

Which of the following represents the definition of momentum?

Accepted Answer

Mass multiplied by velocity

Answer

Force applied over time

Answer

Change in position over time

Answer

Kinetic energy divided by mass

Question 31

In a collision between two objects, which of the following quantities is always conserved?

Accepted Answer

Total momentum

Answer

Total kinetic energy

Answer

Total mechanical energy

Answer

Total potential energy

Question 32

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

Accepted Answer

Both kinetic energy and momentum

Answer

Neither kinetic energy nor momentum

Answer

Kinetic energy only

Answer

Momentum only

Question 33

Which of the following is the SI unit for momentum?

Accepted Answer

kilogram meter per second (kg m/s)

Answer

J

Answer

N

Answer

m/s

Question 34

Which factors influence the force of impact during a collision?

Accepted Answer

Mass and velocity of the colliding objects

Answer

Temperature of the objects

Answer

Shape of the objects

Answer

Color of the objects

Question 35

Identify a real-world example of an elastic collision.

Accepted Answer

Collision of billiard balls

Answer

Collision of two cars

Answer

Collision of a hammer and a nail

Answer

Collision of a ball and a wall

Question 36

Which of the following is the SI unit of momentum, representing the product of an object's mass and velocity?

Accepted Answer

kilogram meter per second (kg m/s)

Answer

newton (N)

Answer

joule (J)

Answer

pascal (Pa)

Question 37

In a closed system, such as an isolated collision, the total momentum of the system remains:

Accepted Answer

constant

Answer

zero

Answer

increasing

Question 38

Which of the following collisions involves a loss of kinetic energy due to internal forces, resulting in the objects sticking together or deforming?

Accepted Answer

Inelastic collision

Answer

Elastic collision

Answer

Perfectly elastic collision

Answer

Super elastic collision

Question 39

In an elastic collision, the kinetic energy of the system:

Accepted Answer

is conserved, meaning the total kinetic energy before and after the collision remains the same

Answer

is lost

Answer

is partially conserved

Answer

is gained

Question 40

In a perfectly inelastic collision, the objects:

Accepted Answer

stick together and move with a common velocity, with no kinetic energy lost as heat or sound

Answer

bounce off each other with the same velocity

Answer

bounce off each other with different velocities

Answer

pass through each other without interacting

Question 41

Which of the following applications demonstrates the principle of conservation of momentum in the real world?

Accepted Answer

Rocket propulsion, where the expulsion of mass (exhaust gases) generates thrust and propels the rocket forward

Answer

Car brakes, which use friction to slow down a moving vehicle

Answer

Bungee jumping, which involves the conversion of gravitational potential energy to kinetic energy

Answer

Wind turbines, which convert the kinetic energy of wind into electrical energy

Question 42

In a head-on collision between two objects of equal mass, the objects will:

Accepted Answer

rebound with equal and opposite velocities, conserving momentum

Answer

stick together and move with the same velocity

Answer

exchange their velocities

Question 43

What is the best definition of momentum?

Accepted Answer

The product of an object's mass and velocity.

Answer

The energy stored in an object due to its position.

Answer

The rate of change of velocity.

Answer

The force applied over a specific distance.

Question 44

In which type of collision is both momentum and kinetic energy conserved?

Accepted Answer

Elastic collision

Answer

Inelastic collision

Answer

Perfectly inelastic collision

Answer

Superelastic collision

Question 45

A ball is dropped from a height and bounces back up. If it doesn't rebound to the same height, what kind of collision occurred between the ball and the ground?

Accepted Answer

Inelastic collision

Answer

Superelastic collision

Answer

Perfectly inelastic collision

Answer

Elastic collision

Question 46

A 10 kg object changes its velocity from 2 m/s to 6 m/s over 2 seconds. What is the impulse experienced by the object?

Accepted Answer

40 Ns

Answer

10 Ns

Answer

5 Ns

Answer

20 Ns

Question 47

What factors determine the magnitude of an object's momentum?

Accepted Answer

Both mass and velocity

Answer

Mass only

Answer

Velocity only

Answer

Neither mass nor velocity

Question 48

What is a major limitation of using momentum alone to analyze collisions?

Accepted Answer

It doesn't account for changes in internal energy.

Answer

It assumes all collisions are perfectly inelastic.

Answer

It doesn't consider the direction of the collision.

Answer

It's only applicable to perfectly elastic collisions.