23 terms

Judith_TryonTEACHER

force

a push or pull exerted on an object

unbalanced force

forces that produce a non-zero net force, which changes an object's motion

balanced force

when the net force on an object is zero and produces no change in the motion of the object

net force

the overall force acting on an object after all the forces are combined

inertia

the tendency of an object to resist a change in motion

Newton's First Law

an object at rest will stay at rest and an object in motion will stay in motion at the same speed and in the same direction until acted on by an unbalanced force; known as the law of inertia

Newton

Measurement of a Force.

friction

a force that opposes the motion of objects that touch as they move past each other

gravity

A force that pulls objects toward each other

Newton's Second Law

the greater the mass of the object, the more force it will take to accelerate the object (F=ma)

air resistance

force that opposes the motion of objects that move through the air

Newton's Third Law

for every action there is an equal and opposite reaction

acceleration

change in velocity

velocity

the speed of an object in a particular direction

Fg

Force /gravity

Fa

Force/applied

Ft

Force/tension

Fn

Force/normal

vector

A quantity that has magnitude and direction

Potential Energy

Stored Energy

Kinetic Energy

Energy of motion

Elastic potential energy

The energy of stretched or compressed objects

Gravitational potential energy

Energy stored by objects due to their position above Earth's surface.