Circular Motion

Where is the net force when the rollercoaster is at the top of the loop?

• Towards the sky

• Towards the Right

• Towards the left

• Towards the ground

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A 0.30 m vinyl record revolves on a turntable that "turns" a record around and around at 33 RPM (revolutions per minute). What is the period of the record player?

Period is the time it takes for 1 revolution.

• 0.55 s

• 1.8 s

• 110 s

• .009 s

What does RPM stand for?

• Speed of a straight line

• speed of a circle

• Revolutions Per Minute

• Rotations Per MInute

After closing a deal with a client, Kent leans back in his swivel chair and spins around with a frequency of 0.5 Hertz (or 0.5 revolution per second). What is Kent’s period of spin? Period is the time it takes for 1 revolution

• 30 s

• 120 s

• 0.5 s

• 2 s

Centrifuge machines are used to separate the components of blood through circular motion. What is centrifugal force?

• an inward force from the center of a circle

• an outward force from the center of a circle

• a tangential force from the center of a circle

• a differential force from the center of a circle

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.MS-ESS1-2

NGSS.MS-PS2-4

moving or tending to move toward a center...

• centripetal force

• centrifugal force

• Tangent

• Curvature

Tags

NGSS.MS-PS2-4

the process or act of turning or circling around something

• Curvature

• Rotation

• Radius

• Orbit

What is the tendency of an object to resist a change in motion?

• coffee

• motion

• inertia

• gravity

Tags

NGSS.MS-PS2-1

Centripetal acceleration acts towards the ___________ of the circular motion

• centre

• circumference