Front

What causes ocean tides?

Back

Ocean tides are caused by the gravitational pull between the moon and the Earth.

Front

What does friction do to motion?

Back

Friction is a force that resists, or works against, motion.

Front

What is the term for the distance something moves in a certain time?

Back

Speed.

Front

How does friction affect pushing heavy objects?

Back

Friction makes it difficult to push heavy objects along the ground.

Front

What is the force that attracts matter to the ground?

Back

Gravity.

Front

What is the difference between speed and velocity?

Back

Speed is how fast something is moving, while velocity includes direction.

Front

What is acceleration?

Back

Acceleration is the rate at which an object changes its speed.

Front

What is an example of a force?

Back

Gravity, friction, and tension are all examples of forces.

Front

What happens to an object in motion if no forces act on it?

Back

It will continue moving at a constant speed in a straight line.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.