Misc
Balanced forces are opposing forces which
prevent work from being done
Opposite poles of a magnet
attract
the property of matter that makes it resist a change in motion is called
inertia
an example of friction
two objects rubbing together
the scientist who discovered the laws of motion
Sir Isaac Newton
a force that works against motion along a surface is called
friction
a __________ is when two objects bump into each other
collision
Mass, speed, and direction are all part of an object's moving _________
energy
The greater the ___________ of an object, the more inertia is has
mass
like poles of a magnet
repel
An object at rest will ______________ unless acted upon by an unbalanced force
stay at rest
when something has been moved, ________ has happened
work
an object in motion will _____________ unless acted upon by an unbalanced force
move in a straight line at a constant speed
force
give an example of converted energy during a collision
sound, heat