Science -- Force & Motion Flashcards
motion
the movement of an object
speed
how fast an object is moving in a given distance
energy
the ability to do work
kinetic energy
energy in motion
potential energy
stored energy
force
a push or pull on an object
gravity
a pulling force on an object
friction
a force that slows down or stops objects in motion
A rough surface will create _____ friction than a smooth surface.
more less
more
A lighter object creates _____ friction than a heavier object.
more less
less
Newton’s First Law
an object at rest remains at rest unless acted on by an outside force
Newton’s Second Law
an object in motion remains in motion unless acted on by an outside force
Newton’s Third Law
every action on an object has an equal and opposite reaction
A ball at the top of a hill has _____ energy.
kinetic potential
potential
A ball rolling down a hill has _____ energy.
kinetic potential
kinetic