Momentum, Impulse and Collisions QUIZ

Name?

Period

• 1st Period
• 2nd Period
• 3rd Period
• 4th Period
• 5th Period

A moderate force will break an egg. However, an egg dropped on the road usually breaks, while one dropped on the grass usually does not break because for the egg dropped on the grass,

• the change in momentum is greater.
• the time interval for stopping is greater, reducing the force applied to it.
• the change in momentum is less.
• the time interval for stopping is less, increasing the force applied to it.

A large moving ball collides with a small stationary ball. The momentum

• of the large ball decreases, and the momentum of the small ball increases.
• of the small ball decreases, and the momentum of the large ball increases.
• of the large ball increases, and the momentum of the small ball decreases.
• does not change for either ball.

Two objects stick together and move with the same velocity after colliding. Identify the type of collision.

• perfectly inelastic
• perfectly elastic

What is the impulse on a 50 kg object that drops from 60 m/s to 45 m/s?

• 3.33 N s
• -3.33 N s
• 750 N s
• -750 N s

A soccer ball collides with another soccer ball at rest. The total momentum of the balls:

• is zero.
• increases.
• remains constant.
• decreases.

A velcro ball is thrown at a stationary target and sticks. If the ball has a mass of 1kg and the target has a mass of 5kg, and the final velocity of the combined mass is 2 m/s, how fast was the ball thrown?

• 16 m/s
• 12 m/s
• 8 m/s
• 6 m/s

Which of the following has the greatest momentum?

• tortoise with a mass of 270 kg moving at a velocity of 0.5 m/s
• hare with a mass of 2.7 kg moving at a velocity of 7 m/s
• turtle with a mass of 91 kg moving at a velocity of 1.4 m/s
• roadrunner with a mass of 1.8 kg moving at a velocity of 6.7 m/s

What is the amount of force it takes to slow a 1,500 kg vehicle from 22 m/s to 15 m/s over the course of 3 seconds?

• +3,500 N
• -3,500 N
• +10,500 N
• -10,500 N