FORCE 3RD QUARTER

Force

Is simply defined as push and pull.

Contact force

These force that need to be in direct contact with the object to apply force in it.

Types of Contact force

•Frictional force

•Applied force

•Normal force

Friction

Is a force exerted by a surface as an object move across it

Applied

Is a force directed to an object by a person or another object

Normal force

Is the support force exerted by a surface that is in contact with another object

Non-contact force

Are forces that do not need to be in direct contact with an object in order to be applied.

Types of Non-contact force

•Gravitational force

•Electromagnetic force

•Nuclear force

Gravitational force

Is a force that pulls object towards the center of the earth

Gravitational force

Keeps people on the ground.

Electromagnetic force

Is a force that combines electric and magnetic

Nuclear force

Is a force that holds the protons and neutrons within the nucleus