Circular practice

Convert from radians to degrees:  7π ∕ 4

• 330°
• 45°
• 315°
• 75°

Tags

CCSS.HSF.TF.A.2

Convert from degrees to radians:  135°

• 2π ∕ 3
• 3π ∕ 4
• 5π ∕ 4
• 3π ∕ 5

Tags

CCSS.HSF.TF.A.2

Convert from degrees to radians:  10°

• π ∕ 18
• π ∕ 180
• 3π ∕5
• 2π ∕ 36

What is 5π/6 radians in degrees?

• 180
• 150
• 360
• 120

A dog sits 1.5 m from the center of a merry-go-round. The merry-go-round is set in motion, and the dog’s tangential speed is 1.5 m/s. What is the magnitude of the dog’s centripetal acceleration?

• 3.9 m/s^2
• 2.8 m/s^2
• 1.5 m/s^2
• 11.5 m/s^2

Tags

NGSS.HS-PS2-1

A dog sits 1.50 m from the center of a merry-go-round and revolves at a tangential speed of 1.80 m/s. If the dog’s mass is 18.5 kg, what is the magnitude of the centripetal force on the dog?

• 56 N
• 21 N
• 40 N
• 98 N

Tags

NGSS.HS-PS2-1

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

As the car goes around the curve, the centripetal force is directed--

• toward the center of the circular curve

• away from the center of the circular curve

• tangent to the curve in the direction of motion

• tangent to the curve opposite the direction of motion

Tags

NGSS.HS-PS2-1

The force that is necessary to keep the bucket swinging in a circle is called the:

• tangential velocity
• centrifugal force
• centripetal force
• the force of gravity

Tags

NGSS.HS-PS2-1

Calculate the centripetal force required to make a 5 kg ball move 4 m/s in a circle with a radius of 2 m.

• 10 N
• 20 N
• 30 N
• 40  N

Tags

NGSS.HS-PS2-1