Intro to Force

Force

Push or Pull

Contact Force

a push or a pull on one object by another that is touching it

Noncontact Force

one object can apply to another without touching it

gravity

an attractive force that exists between all objects that have mass 

Mass

the amount of matter in an object - measured in grams or Kg

weight

gravitational force exerted on an object

friction

a force that resists the motion of two surfaces that are touching

the unit measurement for force

Newton

What do arrows represent for force?

strength & direction

Formula for calculating force

mass times acceleration

Which of the following is not a force?

Because force is a vector measurement, it has both magnitude and direction

Gravity is a force that pushes objects away from Earth