Rotational Motion

What are the units for angular displacement.

• m/s

• kgm2/s

• radians

• rad/s

What are the units for angular velocity

• m/s2

• rad/s

• kgm/s

• kg/m2

Bonnie sits on the outer rim of a merry go round. Klyde site midway between the center and the rim. The ride makes one revolumtion every two seconds.

Klyde's angular velocity is

• the same as Bonnie's

• twice Bonnie's

• half of Bonnie's

• 1/4 Bonnie's

Bonnie sits on the outer rim of a merry go round. Klyde site midway between the center and the rim. The ride makes one revolumtion every two seconds.

Klyde's tangential velocity is

• the same as Bonnie's

• twice Bonnie's

• half of Bonnie's

• 1/4 Bonnie's

Bonnie sits on the outer rim of a merry go round. Klyde sits midway between the center and the rim. The ride makes one revolumtion every two seconds.

Klyde's centripetal acceleration is

• more than Bonnie's acceleration

• less than Bonnie's acceleration

• 
  the same as Bonnie's acceleration

Tags

NGSS.HS-PS2-1

Bonnie sits on the outer rim of a merry go round. Klyde sits midway between the center and the rim. The ride makes one revolumtion every two seconds.

Klyde's centripetal force is

• more than Bonnie's acceleration

• less than Bonnie's acceleration

• 
  the same as Bonnie's acceleration

Tags

NGSS.HS-PS2-1

What is the direction of the acceleration at point A, if the ball is revolving clockwise?

• up
• right
• down
• left

Tags

NGSS.HS-PS2-1

A ceiling fan with 16 inch blades rotates at 45 rpm.  Find the angular velocity of the fan in rad/min.  Round to the nearest tenth.

• 90 rad/min
• 282.7 rad/min
• 45 rad/min
• 141.4

A ceiling fan with 16 inch blades rotates at 45 rpm.  Find the tangential velocity of the fan's outside edge in in/min.  Round to the nearest tenth.

• 4523.9 in/min

• 17.7 in/min

• 282.7 in/min

A ceiling fan with 16 inch blades rotates at 45 rpm.  A penny sits on the outside edge of the fan, what is it's centripetal acceleration?  Round to the nearest tenth.

• 1279101 in/min²

• 282.7 in/min²

• 15.1 in/min²

Tags

NGSS.HS-PS2-1