Momentum and Impulse Quiz

What is required to change the momentum of an object?

• Velocity

• Mass

• Force

• Time

Which of the following is true about impulse?

• Impulse is the change in momentum.

• Impulse is the change in mass.

• Impulse is the product of mass and velocity.

• Impulse is the product of force and distance.

In the tennis ball example, what is the initial velocity of the ball?

• 0 m/s

• 60 m/s

• 4 m/s

• 55 m/s

How long is the tennis ball in contact with the racket?

• 4 milliseconds

• 4 seconds

• 4 hours

• 4 minutes

What is the average force exerted on the tennis ball?

• 825 Newtons

• 500 Newtons

• 1000 Newtons

• 600 Newtons

In the water hose example, what is the initial speed of the water?

• 10 m/s

• 25 m/s

• 15 m/s

• 20 m/s

What is the rate at which water leaves the hose?

• 1.5 kg/s

• 2.0 kg/s

• 1.0 kg/s

• 2.5 kg/s

What is the final velocity of the water when it hits the car?

• 5 m/s

• 20 m/s

• 10 m/s

• 0 m/s

How is the force exerted by the water on the car calculated?

• By dividing the change in momentum by the change in time

• By adding the initial and final velocities

• By multiplying the mass by the velocity

• By subtracting the mass from the velocity

What is the force exerted by the water on the car?

• 30 Newtons

• 50 Newtons

• 20 Newtons

• 40 Newtons