the path a moving object follows
using force to move an object
a change in an object's position
the measure of how far an object as traveled
a device with few parts that makes work easier by changing the strength or direction of a force
a force that pulls objects toward each other
how fast or slow an object is moving
a skateboard ramp
an inclined plan wrapped around a cylinder
two inclined planes together, like an ax
wheel and axle
a doorknob; changes a weak circular force to a strong one
a hammer, when used to remove nails or a stiff bar and a fixed point
a rope and a wheel
gravity, friction and magnetism
a force that slows down or stops motion between two surfaces that touch
a force that pushes or pulls some materials
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