Objects have inertia only when they are moving.

A force can cause an object to start moving, stop moving or change direction

All objects, whether they are moving or at rest, have inertia

__________ is the force that attracts planets to the sun and keeps them in orbit

A skier turning her skies and slowing down is an example:

__________ is the speed of an object as well as the direction in which it is traveling.

_____________ is the amount of matter or material in an object.

Friction can usually cause heat.

Oil is used in car engines to:

Friction causes moving objects to slow down or stop.

Rough surfaces such as sandpaper tend to produce more friction.

Gravity is a force that pushes objects away from Earth.

A force such as pushing can cause an object to:

Sand is often put on icy roads to:

A push or a pull of an object is a type of:

What force causes rain to fall to the ground?

Smooth surfaces such as ice tend to cause greater friction

The term used to describe a decrease in velocity is:

Gravity is the force that pulls objects toward the center of the Earth.