Impulse and Momentum Quiz

What is the relationship between force and momentum according to Newton's Second Law?

• Force is the sum of mass and acceleration.

• Force is the difference between initial and final momentum.

• Force is the product of mass and velocity.

• Force is the rate of change of momentum.

How is impulse defined in physics?

• As the sum of potential and kinetic energy.

• As the product of force and time.

• As the change in kinetic energy.

• As the product of mass and velocity.

What are the units of impulse?

• Meters per second squared

• Newton-seconds or kilograms meters per second

• Kilograms per second

• Joules

In the example of a 100 kg mass, what is the calculated impulse when a 500 N force is applied for 2.5 seconds?

• 1250 Newton-seconds

• 1500 Newton-seconds

• 2500 Newton-seconds

• 1000 Newton-seconds

What is the final velocity of the 100 kg mass after the force is applied?

• 12.5 m/s to the right

• 10 m/s to the left

• 15 m/s to the right

• 10 m/s to the right

In the car collision example, what is the change in momentum of the car?

• -24,000 kg m/s

• 24,000 kg m/s

• 48,000 kg m/s

• -48,000 kg m/s

What is the magnitude of the force exerted by the wall on the car during the collision?

• -96,000 N

• -48,000 N

• 96,000 N

• 48,000 N

In the ball collision example, what is the final speed of the ball after the collision?

• 1.8 m/s to the left

• 3 m/s to the left

• 1.8 m/s to the right

• 3 m/s to the right

How much mechanical energy is lost during the ball's collision with the wall?

• 0.72 Joules

• 2.88 Joules

• 1.44 Joules

• 1.44 Newtons

What forms of energy might the lost mechanical energy be transformed into during the collision?

• Only sound energy

• Only heat energy

• Sound and heat energy

• Potential energy