Rotational Motion 1

Which represents the acceleration of the ball?

• A
• B
• C
• D

Tags

NGSS.HS-PS2-1

A ball on a string is travelling in circular motion. Which vector represents the centripetal force?

• The green vector because it points towards the center of the circular path
• The blue vector because it shows the direction of the object's inertia
• The green vector because it shows the path of the ball
• The blue vector because this is the way the ball will move when it is released.

Tags

NGSS.HS-PS2-1

Centripetal acceleration is ...

• Acceleration toward the center of a curved or circular path
• Acceleration toward the outside of a circle
• Vertical motion instead of horizontal motion

Which of the following is the unit for centripetal force?

• J
• m/s²
• kg⋅m/s
• N

The unit of angular velocity is

• m/s

• m/s²

• rad/s

• rad/s²

The force that keeps the tennis ball going in a circle is called?

• torque

• centripetal force

• centrifugal force

• gyroscopic progression

Tags

NGSS.HS-PS2-1

What's the centripetal acceleration of an object traveling 2.3 m/s around a circle of diameter 0.6 m?

• 5 m/s²

• 17.63 m/s²

• 10 m/s²

• 8.81 m/s²

Tags

NGSS.HS-PS2-1

what is the centripetal acceleration formula?

• 
• 
• 
• 

The velocity is always _____ to the line of a circle. 

• outwards
• towards the center
• tangent
• faster

You swing a bucket of water attached to a string in a circle above your head. What keeps the water in the bucket?

• Friction
• Centripetal Force
• Gravity
• Inertia

Tags

NGSS.HS-PS2-1