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AP Rotational Kinematics 5 min

Total questions: 12

Worksheet time: 10mins

Name
Class
Date
1.
Two bugs ride a turntable which is rotating at a constant rate of 4 rad/s. Bug A is at a radius of 4 cm, while bug B is at a radius of 8 cm. Which of the following is true? 
a)
Bug A has a greater rotational speed. 
b)
Bug B has a greater rotational speed. 
c)
Bug A has a greater speed. 
d)
Bug B has a greater speed. 
2.
How do you find the tangential speed of a rotating circle?
a)
v = ωr
b)
v = ωr2
c)
v = ωπ
d)
v = ωπr
3.
Which has greater angular speed, a horse near the outside rail of a merry-go-round or a horse near the inside rail?
a)
The inside horse
b)
The outside horse
c)
Neither - they both have the same angular speed
4.
How do you get the maximum torque?
a)
longer lever arm and more force at an acute angle
b)
shorter lever arm with more force perpendicularly
c)
shorter lever arm and more force perpendicularly
d)
longer lever arm with more force perpendicularly
5.
The easiest way to open a heavy door  is by applying the force
a)
Near the hinges
b)
In the middle of the door
c)
At the edge of the door far from the hinges
d)
At the top of the door
6.
Torque can be positive or negative.
a)
True
b)
False
7.

The angle through which a point, line, or body is rotated in a specific direction and around a specific axis •

a)

angular velocity

b)

angular displacement

c)

radian

d)

degree

8.

Which of the following is NOT a unit of rotational speed?

a)

Meters per second

b)

Revolutions per minute

c)

Revolutions per second

d)

Rotations per second

9.

Torque causes angular acceleration.

a)

True

b)

False

10.

Which of the following is true about an object in uniform circular motion?

a)

The speed of the object is constant

b)

The acceleration of the object is constant

c)

The object has not net force exerted on it

d)

The velocity of the object is constant

11.

Which of the following relationship best defines one radian?

a)

Arc length time radius, where arc length and radius are equal

b)

Arc length divided by radius, where arc length and radius are equal

c)

Circumference of a circle divided by pi

d)

Diameter of a circle divided by pi

12.

A rotating wheel has a point A marked on the outside rim of the wheel and a point B marked at a distance halfway from the axis of the wheel to the rim. Compare the linear velocity and the angular velocity of these two points

a)

The linear velocity at point A is the same as the linear velocity at point B, but the angular velocity is greater at point A

b)

The linear velocity at point A is the same as the linear velocity at point B, but the angular velocity is greater at point B

c)

The angular velocity at point A is the same as the angular velocity at point B, but the linear velocity is greater at point A

d)

The angular velocity at point A is the same as the angular velocity at point B, but the linear velocity is greater at point B