Unit 5: Momentum & its Conservation FINAL EXAM REVIEW JUNE 2019

Which of the following objects has momentum?

• A. A pencil at rest on your desk.

• B. A football played running down the field at a constant velocity

• C. A car parked in front of Legal Prep.

• D. Both B & C

Which of the following objects DO NOT have momentum?

• A. The phone on Mr. B’s desk

• B. A basketball player running to make a basket.

• C. A car driving down Washington Avenue.

• D. Both B & C

A 4,000 kg truck is moving north at 1 m/s in traffic, and a 2,000 kg car is moving north at 30 m/s on the highway. Which of the following statements best compares the truck and the car?

• A. The truck has less momentum than the car

• B. The truck has less inertia than the car

• C. The truck has more mass but less weight than the car

• D. The truck has more kinetic energy but less potential energy than the car

The momentum of an object is:

• A. Independent of its velocity

• B. Independent of its inertia

• C. Dependent on its potential energy

• D. Dependent on its mass

What is required to stop momentum?

• A. Impulse

• B. Time

• C. Force

• D. Mass

What is the basic formula for momentum?

• A. F=ma

• B. p=mv

• C. a²+b²=c²

• D. e=mc²

Which of the following objects will be the hardest to stop?

• A. A 6300 kg elephant moving east at a speed of 0.11 m/s

• B. A 60 kg deer moving west at a speed of 16.4 m/s

• C. A 0.42 kg soccer ball moving downfield at a speed of 12 m/s

• D. A 0.03 kg arrow moving toward a target at a speed of 150 m/s

A basketball has a mass of 5 kg and a velocity of 3 m/s. What is the momentum of the basketball?

• A. 15 m/s

• B. 1.5 kg

• C. 15 kg*m/s

• D. 8 m/s

A basketball has a momentum of 15 kg * m/s. The velocity of the basketball is 5 m/s.

What is the mass of the basketball?

• A. 15 m/s

• B. 0.33 kg

• C. 3 kg

• D. 5 kg * m/s

A basketball has a momentum of 15 kg * m/s. The mass of the basketball is 3 kg.

What is the velocity of the basketball?

• A. 5 m/s

• B. 0.33 kg

• C. 3 kg

• D. 5 kg * m/s