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Forces and Motion

Science

Forces and Motion Chapter Video

Forces and Motion Chapter Video

acceleration

a change in velocity with respect to time
acceleration Simple Definition

balanced force

forces that are equal but in opposite directions
balanced force Simple Definition

force

the push or pull exerted on an object
force Simple Definition

friction

the force that opposes motion between two surfaces that are touching
friction Simple Definition

gravity

the attractive force between all objects that have mass
gravity Simple Definition

inertia

the tendency of objects to resist any change in motion
inertia Simple Definition

speed

the distance an object travels per unit of time
speed Simple Definition

unbalanced force

forces acting on an object to cause a change in motion
unbalanced force Simple Definition

velocity

speed and direction of a moving object
velocity Simple Definition

work

the use of force to move an object over a distance, its unit is the Joule (J)
work Simple Definition

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