Contact and Non-Contact Forces

Front

NON-CONTACT force

Back

Push or pull without touching

Front

Gravity

Back

Attractive force between objects

Front

Mass increases -> Gravitational pull?

Back

Increases

Front

Gravity force between closer objects

Back

Increases

Front

Difference between Mass and Weight

Back

Mass: constant; Weight: varies with gravity.

Front

Poles of a magnet

Back

North and South

Front

NORTH poles of magnets facing each other

Back

Repel (push apart)

Front

If Earth doubled in size

Back

Moon crashes into Earth due to increased gravitational pull

Front

Mass increases -> Gravitational pull?

Back

Increases

Front

Examples of forces

Back

Contact Forces