Tangential speed depends on ______ and __________________.
rotational speed and the distance from the axis of rotation
The centripetal force on an object depends on the object's __________, _______, ___________________.
tangential speed, mass, and the radius of its circular path
The centrifugal-force effect is not real but is attributed to _________.
inertia
Centrifugal force is an effect of ______.
rotation
Two tupes of circular motion are _______ and __________.
rotation and revolution
Earth's motion around the sun is classified as...
revolution
When you ride a bicycle, the wheels ________ around their axles.
rotate
The direction of motion associated with tangential speed is...
tangent to the circular path
T or F? The terms linear speed and rotational speed can be used interchangeably.
FALSE
T or F? All parts of a spinning merry-go-round have the same angular speed.
TRUE
RPM stands for...
revolutions per minute
T or F? Tangential speed is directly proportional to rotational speed.
TRUE
T or F? Your tangential speed while standing at the axis of rotation of a spinning platform is zero.
TRUE
T or F? Any object moving in a circle is constantly accelerating.
TRUE
If centripetal force ceased to act on an object moving in a circular path, the object would...
move in a straight line
Explain where the centripetal force that holds a car in a curved path while rounding a corner comes from.
the friction between the tires and the road
the meaning of the work centrifugal is...
away from the center
T or F? When a can tied to a string is swung in a circle, an outwardly directed force acts on the can.
FALSE
What causes the centrifugal-force effect?
inertia
T or F? In a rotating reference frame, both centripetal and centrifugal force act on objects in the rotating system.
TRUE
The centrifugal force experienced in a rotating reference frame is not a ______ force.
TRUE