Motion

What units would you use to measure distance?

• meters

• kilometers per hour

• seconds

• meters per second

When an object is in motion, it moves from one _______ to another

• time

• position

• rotation

• vibration

Which device uses magnetic force?

• hair dryer

• flashlight

• compass

• toaster

A change in an object's speed or direction is known as _________.

• location

• motion

• acceleration

• speed

Which is an example of linear motion?

• a turning bicycle wheel

• a person on a merry-go-round

• a car on a straight road

• a plucked guitar string

The force of gravity pulling down on a puppy is the ________.

• puppy's mass

• puppy's position

• puppy's weight

• puppy's speed

Unbalanced forces cause a change in _______.

• friction

• motion

• size

• position

Which units would be useful for giving the speed of a turtle?

• miles

• kilometers

• meters per second

• centimeters per minute

When earth spins on its axis, it _______.

What do you need to know to find an object's speed?

• The distance traveled and the time it took to travel the distance.

• The place traveled, and how fast it went.

• The movement of the object and its speed.

• The rotation of the object and the time it took to travel.