Free Printable UCM Quiz 1 (F)

Worksheets

UCM Quiz 1 (F)

Total questions: 15

Worksheet time: 39mins

Name

Class

Date

What term describes the force needed to make an object move in a circular path?

centrifugal force

centripetal frequency

centripetal force

centripetal friction

If an object is moving in a circular path at a constant speed, how do the directions of its velocity and acceleration compare?

They point in opposite directions.

The answer will vary depending on the conditions

Both point in the same direction

They are perpendicular.

If an object is moving with constant speed and has a constant acceleration which is perpendicular to its velocity then_________.

it is moving in a circle

it is moving in a straight line

it is slowing down

it is speeding up

When an object experiences uniform circular motion, the direction of its acceleration is always ______.

the same as that of its velocity

opposite that of its velocity

away from the center of the circular path.

towards the center of the circular path.

Can objects moving with constant speed accelerate? Explain.

Yes, if an object is moving it must be accelerating

No, if the speed is constant then the acceleration must equal to zero.

Yes, although the speed is constant, the direction of the velocity can be changing.

Yes, if it is moving a force must be acting on it, so it must be accelerating

When an object experiences uniform circular motion, the direction of the net force acting on it is

is directed toward the center of the circular path

is directed away from the center of the circular path.

in the same direction as the motion of the object.

in the opposite direction of the motion of the object

A car goes around a curve of radius r at a constant speed v. What is the direction of the velocity of the car?

away from the curve's center

toward the front of the car

toward the back of the car

toward the curve's center

You ride your bike around a curve of radius r at a constant speed v. Then you go around the same curve at four times of the original speed 4v. What is the centripetal force F as you go around the curve for the second time, compared to the first time?

F = mv²/r

4 times as big

one-fourth as big

half as big

16 times as big

A car goes around a curve of radius r at a constant speed v. Then it goes around a curve of radius 2r at speed 2v. What is the centripetal force F on the car as it goes around the second curve, compared to the first?

F = mv²/r

four times as big

half as big

two times as big

the same

10.

If the centripetal force is removed from an object moving in a circular path the objects velocity goes

curves along the circular path

towards the center of the the circular path

away from the center of the the circular path

in a tangent to the the circular path

11.

What term describes the acceleration of an object moving with constant speed in a circular path?

linear acceleration

centripetal acceleration

constant acceleration

centrifugal acceleration

12.

The word 'uniform' means

gradually changing

circulating, mixing or diffusing

same, constant or alike

a force that changes an objects direction

13.

What two properties remain constant during Uniform Circular Motion?

friction and radius

direction and radius

speed and direction

speed & radius

14.

Centripetal forces keep objects going in a circle around a central point. What force creates the centripetal force needed to keep the Earth going around the Sun?

Magnetism

Gravity

Applied Force

Normal Force

15.

Centripetal forces keep objects going in a circle around a central point. What force creates the centripetal force needed to keep a car going around a curve?

Friction