Download Motion and Forces

Motion and Forces

Force- a push or pull applied to an object

Net Force-When two or more forces act on an object at the same time
Net Force Not
Equal and
favoring the left

Friction- the force that opposes the sliding motion of two touching surfaces
Type of Friction
Description
Example
Static
Friction in which two forces
are not moving past one
another.
Pushing a fridge across a
floor
Sliding
Friction where two forces are
moving past one another.
Sledding down a hill
Rolling
Friction between a rolling
object and the surface it rolls
on.
Skateboard moving on the
ground
Fluid
Friction when object moves
through fluid, meaning either
a liquid or gas.
skydiving

Air Resistance- friction-like force that opposes motion of objects that move
through air-depends on speed, size, and shape of an object
Newton’s 3 Laws of
Motion
Newton’s 1st Law

An object in motion stays in motion or an object at rest stays at rest until
acted upon by an unbalanced force.

https://www.youtube.com/watch?v=08BFCZJDn9w
Newton’s 2nd Law

Acceleration is produced when a force acts on mass.

The greater the mass, the greater the amount of forced needed to accelerate
the object.

https://www.youtube.com/watch?v=nO7XeYPi2FU
Newton’s 3rd Law

For every action, there is an equal and opposite reaction.

https://www.youtube.com/watch?v=EgqcGrB3re8