Rotational Motion

A torque is:

• Force X Mass

• Force X Lever Arm Distance

• Force / Mass

• Mass/Volume

Which objects roll down an incline with the greatest acceleration?

• objects with small rotational inertia

• objects with large rotational inertia

• The object with the most mass

• The object with the smallest mass

Tags

NGSS.HS-PS2-1

Where would a kid sit to experience the greatest tangential speed on a merry-go-round?

• the outside

• the inside

• neither- both have same tangential speed

Which of the following is not a unit of angular speed?

• revolutions per minute

• rotations per second

• revolutions per second

• meters per second

If you whirl a rock on the end of a string and the string suddenly breaks, the rock will

• fly directly towards you

• fly directly towards Camden

• spiral away from your hand

• fly off in a line tangent to its circular path

Tags

NGSS.HS-PS2-2

A basketball spinning around on a person's finger is an example of

• black magic

• sorcery

• Rotation

• Revolution

Centripetal Forces are

• Forces that cause objects to follow a circular path

• Center Seeking

• A real force

• Answers A,B and C are correct.

If an object moves in a circular path about an external axis it is called

• rotation

• revolution

• spinning

• gyrating

Forces causes linear acceleration while torques cause

• Applause

• rotatation

• indigestion

• creation of mass

A car travels in a circle with constant speed. The net force on the car is

• directed forward in the direction of travel

• directed toward the center of the curve

• zero because the car is not accelerating

• 100 Newtons

Tags

NGSS.HS-PS2-1