Motion, Speed and Newton

An object is moving if its _____________ changes

• size

• mass

• substance

• position

The background that changes position is called a ________ _________.

• speed zone

• reference point

• displacement

• position change

Speed describes how _________ an object moves.

• fast

• slow

• far

• long

What three things does the measurement of speed depend on?

What is the SI unit for distance?

• seconds

• grams

• meters

• meters/seconds

If Bart ran 800 meters at a speed of 10m/s how long did he run?

What is a force?

• The total amount of pressure in a room

• A push or pull

• A glide or slide

• The amount that an object weights.

What is known as the rate at which velocity changes?

• Acceleration

• Speed

• Distance

• Time

What must you calculate to determine the acceleration?

• The rate of change in the reference point.

• How fast an object changes during a rotation.

• The distance and object travels.

• The change in velocity during each unit of time.

Ture or False: Acceleration refers to increasing sped, decreasing speed, or changing direction.

• True

• False