Newton's Laws Quiz Review

30 terms

Gravity

the force of attraction between objects due to their masses.

Friction

force that opposes motion between two

Free Fall

When the only force acting on an object is gravity

Terminal Velocity

the greatest speed reached by falling objects

push or pull

kg * m/s/s

Unbalanced Forces

forces that cause a change in motion

Balanced Forces

forces that cause no change in motion

9.8 m/s/s

Air Resistance

a form of fluid friction

Projectile

objects that are thrown

Weight

measurement of the amount of gravity acting on an object

Mass

amount of matter in an object

Kinetic Friction

friction between moving objects

Static Friction

friction between non-moving objects

Newton's 1st Law

Objects in motion want to stay in motion; objects at rest will stay at rest unless acted on by an outside force

F=ma

Newton's 3rd Law

For every action force there is an equal but opposite reaction force

Inertia

tendency of an object to resist a change in motion

W=m*g

S=g*t

Newton

distance & mass

Describe Force

strength & direction

Momentum

quantity of motion

mass x velocity

unit of momentum

m/s/s

unit of acceleration

Law of Universal Gravitation

gravity acts between all objects in the Universe due to their mass

Law of Conservation of Momentum

Momentum stays the same when objects collide