AP Physics Review Test #1

By what factor will the kinetic energy of an object increase if the velocity of the object is tripled?

• The kinetic energy will stay the same.

• 3

• 6

• 9

An 8-kg object is raised by a crane to the top of a building 20-meters in height. If it takes 50 seconds for the object to get to the top of the building, then how much power was needed?

• 1600 watts

• 3.2 watts

• 32 watts

• 200 watts

Tags

NGSS.HS-PS3-1

The area under a force-time curve represents:

• Change in potential energy

• Change in momentum

• Change in force

• Change in torque

Tags

NGSS.HS-PS2-2

What is the coefficient of static friction if it takes 44 N of force to move a box that weighs 86 N? 

• 0.78
• 0.51
• 0.78 N
• 0.58 N

Tags

NGSS.HS-PS2-1

"An object in motion (or at rest) will to stay in motion (or at rest) until an outside force acts upon it."

• Newton's 1st Law
• Newton's 2nd Law
• Newton's 3rd Law
• Newton's 4th Law

Force = Mass x Acceleration

• Newton's 1st Law
• Newton's 2nd Law
• Newton's 3rd Law
• Newton's 4th Law

Tags

NGSS.HS-PS2-1

"For every action, there is an equal and opposite reaction."

• Newton's 1st Law
• Newton's 2nd Law
• Newton's 3rd Law
• Newton's 4th Law

Tags

NGSS.MS-PS2-1

A 31-kg mass is accelerated by a net force of 81 N. What is the acceleration of the mass?

• 2.6 m/s²

• 10 m/s²

• 0.39 m/s²

• 0.25 m/s²

• 4 m/s²

Tags

NGSS.HS-PS2-1

Which of the following is true about the system shown?

• The system is not accelerating.
• The tension between m₂ and m₁ is less than the tension between m₂ and m₃
• The acceleration of the system only depends on m₃
• None of the other answers are true

Tags

NGSS.HS-PS2-1

What is an example of a non-mechanical energy?

• Heat Caused by Friction

• Gravitational Potential Energy

• Spring Potential Energy

• Kinetic Energy