AP Physics Reviews by Topic

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

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

A rocket of mass m begins to ascend vertically at v m/s. The work that gravity does on the rocket is:

• Negative

• Zero

• Positive

• Undefined

Tags

NGSS.HS-PS2-4

A force of 50-N is applied to a 4 kilogram mass. The acceleration of the object is:

• 200 m/s²

• 12.5 m/s²

• 54 m/s²

• 46 m/s²

Tags

NGSS.MS-PS2-2

An object is thrown vertically upward with an initial speed of 15 m/s. What is the total time in the air?

• 3 second

• 1.5 seconds

• 5 seconds

• 3.5 seconds

Tags

NGSS.MS-PS2-4

Which law states that the total energy in a closed system remains constant?

• Law of Conservation of Momentum

• Law of Conservation of Energy

• Newton's First Law of Motion

• Hooke's Law

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

The speed of light (c) =

• 3 x 10⁸ miles/hour

• 3 x 10⁸ meters/second

• 3 x 10⁸ kilometers/hour

• none of these

Tags

NGSS.HS-PS4-1

Two water waves combine in phase and build a larger wave. What phenomenon is happening?

• constructive interference

• refraction

• reflection

• diffraction

Tags

NGSS.MS-PS4-1

What is the formula for calculating force according to Newton's Second Law of Motion?

Tags

NGSS.MS-PS2-2

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.MS-PS3-4

A kg-m²/s² is otherwise known as a(n)

• Newton

• Joule

• Watt

• Displacement

Tags

NGSS.HS-PS3-1