forces

Force

Is a push or pull on an object that can change its motion(speed up,slow down or change directions) change its shape (stretch,compress,bed or twist)

Contact force

Forces that need objects to touch

Friction

Resists motion between surfaces

E.g rubbing you hands together

Tension

Pulling force along a rope, string or cable

E.g tug of war,

Normal force

Supports force from a surface pushing back on a object

E.g book on a tale , the table pushes up to hold it

Applied force

Any force you actively push or pull on an object

E.g pushing a shopping cart, pulling a door

Air resistance/drag force

Friction caused by air against a moving object

E.g sky direct falling, car accelerating

Spring force

Force from a compressed or stretched

E.g bouncing in a spring mattress, slingshot

Non contact force

Do not require touching

Gravity force

Pulls object toward each other

E.g apples falling, earth keeping moon in orbit

Magnetic force

Attracts or repels magnetic materials

E.g magnets sticking together

Electrostatic force

Attraction/repulsion between charged objects

E.g rubbing a balloon on hair

Nuclear forces

Hold particles in the nucleus together

E.g protons and neutrons in atoms