Newton's Laws
An elephant jumping on a trampoline
3rd law
a push or a pull
force
resting your bike at the top of the hill
potential energy
energy cannot be created or destroyed: True or False?
true
the lowest layer of the atmosphere
troposphere
Force = mass x acceleration
2nd law
what is an unbalanced force?
force that changes motion
an asteroid falling to earth has...
kinetic energy
energy stored in chemical bonds
chemical energy
most meteors burn up in this layer
mesosphere
3rd law
what is a balanced force?
all forces equal zero/does not move
a snail creeping along the sidewalk has..
kinetic energy
this type of energy comes from the sun
light energy
the ozone layer is found in this layer
stratosphere
You need to apply (more/less) force to roll a bowling ball down a hallway and (more/less) force to roll a golf ball the same distance.
motion
squeezing a spring between your palms is an example of..
potential energy
gravitational potential energy
this layer means "heat" in Greek
thermosphere
An object at rest will stay at rest unless acted upon by an unbalanced force is which law?
1st
potential energy is ____________ energy
stored
a rock falling from a cliff in midair is an example of __________ energy converting into __________ energy
potential energy converting into kinetic energy
an apple has ___________ energy, and by eating it gives you energy to move which is ___________ energy
chemical; kinetic
this layer extends all the way up through outer space
exosphere