AP Physics Unit 1 Review

Centripetal acceleration is the acceleration…

• Away from the center of the circle

• When an object is going straight

• Toward the center of a circle

• That doesn’t exist

How does the speed in Case A compare to the speed in Case B?

• two times

• one fourth times

• four times

• one half times

Tags

NGSS.HS-PS2-1

A car goes around a curve of radius r at a constant speed v. The coefficient of static friction between the tires and the surface is µ. What is the maximum value of the car’s velocity in order to prevent car from skidding of the road?

• (µrg)²

• µ r/g

• √urg

• g/ µr

Tags

NGSS.HS-PS2-1

How does Newton's Second Law of Motion explain the acceleration of a car when the driver steps on the gas pedal?

• The car's mass decreases, causing acceleration.

• The force applied by the engine increases, causing acceleration.

• The car's velocity decreases, causing acceleration.

• The car's mass increases, causing acceleration.

Tags

NGSS.HS-PS2-1

What is the formula for calculating force?

Tags

DOK Level 1: Recall

What is physics?

• A type of mathematics

• A field of science in which we study the physical world

• A study of plants and animals

• A branch of chemistry

Calculate the velocity of an object moved around a circle with a radius of 1.65 m and an acceleration of 3.5 m/s².

• 2.4 m/s

• 3.6 m/s

• 3.9 m/s

• 4.2 m/s

You are moving a ball in a circle using 72 N of centripetal force. What would the force be if you doubled the velocity about the circle?

• 244 N

• 288 N

• 36 N

• 72 N

Tags

NGSS.HS-PS2-1

Which of the following depict the speed of the bowling ball?

• A

• B

• C

• D

Tags

NGSS.MS-PS3-1

What force keeps planets in orbit around the Sun?

• Friction

• Gravity

• Momentum

• Velocity

Tags

NGSS.HS-ESS1-4

NGSS.HS-PS2-4