Forces and Motion Review

Front

What is friction?

Back

Friction is a force that opposes the motion of an object when it comes into contact with another surface.

Front

What force causes objects to fall to the ground?

Back

Gravity is the force that pulls objects toward the Earth.

Front

What is the relationship between mass and force required to move an object?

Back

The greater the mass of an object, the more force is required to start moving it.

Front

What is the effect of gravity on a skateboard going downhill?

Back

Gravity pulls the skateboard down the hill, causing it to accelerate.

Front

What surface has the least amount of friction?

Back

An ice skating rink has the least amount of friction compared to other surfaces.

Front

How does friction affect motion?

Back

Friction slows down or stops the motion of objects.

Front

What is the formula for calculating force?

Back

Force = mass x acceleration (F = m x a).

Front

What happens to the motion of an object when friction is increased?

Back

The object will move slower or may stop completely.

Front

What is the role of air pressure in the motion of leaves?

Back

Air pressure can affect how leaves float or fall, but gravity is the main force that brings them down.

Front

What is the difference between static and kinetic friction?

Back

Static friction prevents an object from starting to move, while kinetic friction acts on an object that is already moving.