Circular Mechanics

Which represents the acceleration of the ball?

• A
• B
• C
• D

Tags

NGSS.HS-PS2-1

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

• A
• B
• C
• D

Tags

NGSS.MS-PS3-1

Which of the following is the unit for centripetal force?

• J
• m/s²
• kg⋅m/s
• N

A 10kg car travels at a constant speed of 20.0 m/s around a horizontal circular track. Which diagram correctly represent the direction of the car's velocity (v) and the direction of the centripetal force (Fc) acting on the car at a particular moment?

• 
• 
• 
• 

Tags

NGSS.HS-PS2-1

The time taken for one complete circuit is called the... 

• Period
• Frequency 
• Angular velocity

A ball on a string is spun around in a circle. Which of the following quantities is not constant?

• mass

• force

• velocity

• acceleration

The diagram shows an object traveling at a constant speed in a circular path. Which labeled arrow represents the centripetal force acting on the object?

• W

• Z

• X

• Y

Tags

NGSS.HS-PS2-1

As mass increases, what happens to gravitational force?

• increases
• decreases
• stays the same
• i don't know

Tags

NGSS.HS-PS2-4

Decreasing the radius when making a turn allows you to____?

• Increase your friction
• Keep a high speed
• Change your inertia
• Decrease gravitational pull

Tags

NGSS.HS-PS2-1

Assuming Andromeda rotates at a uniform rate, which stars are moving the fastest?

• Stars closest to center
• Stars furthest from the center
• Stars with the hottest temperature
• Stars with the coldest temperature

Tags

NGSS.HS-ESS1-4