AP Physics Unit 1 Review

A particle travels at a constant speed around a circular path of radius R. If the particle makes one complete trip around the entire circle, what is the magnitude of the displacement for this trip?

• 2piR

• 2R

• 4R

• 0

A small object is released from rest and reaches the ground in a time of 2.50 s. Neglect air resistance. With what speed does the object reach the ground?

• 31.3 m/s

• 25.0 m/s

• 12.5 m/s

• 10m/s

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

A simple pendulum consists of a mass M attached to a string of length L of negligible mass. For this system, when undergoing small oscillations

• the frequency is proportional to the amplitude.

• the period is proportional to the amplitude.

• the frequency is independent of the mass M.

• the frequency is independent of the length L.

A radian per second is a unit of:

• angular displacement

• angular velocity

• angular acceleration

• angular momentum

The position vs. time graph of an object moving on a horizontal line is shown. At what time(s) is the object moving with its greatest speed?

• At time 𝑡 = 3.0 𝑠 only

• At time 𝑡 = 3.5 𝑠 only

• At times 𝑡 = 3.5 𝑠 and 𝑡 = 9.0 𝑠

• At time 𝑡 = 7.0 𝑠 only

An object is thrown straight upward. The object remains in free fall until it returns to its initial launch point. Which one of the following graphs could represent the velocity of the object as a function of time during its flight?

• 
• 
• 
• 
• 

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

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

If the gravitational force between two masses is F, then by what factor would the distance between the two object need to change if the mass of one of the objects is doubled in order for the force to remain the same?

• 4

• 2

• 2^1/2

• 6^1/2

Tags

NGSS.HS-PS2-4

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-PS2-1

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.HS-PS2-1