Matching Pas
I Motion
2. Distance
3. Displacement
4. nstantaneous speed
5. Constant speed.

a speed that does not vary
b. when an object changes position
c. speed at any given point in time
d. how far an object has moved
e distance and direction of an object's
change in position

Which ones to which

Which function is performed by earths atmosphere? a. ultraviolet rays are prevented from reaching the ozone layer. b. earths temperature is raised and moderated by trapping in heat c. charged particles from the sun are prevented from reaching earth. d. magnetic charges from space are prevented from reaching earths surface.

One similarity and one difference between an element and a mixture of elements

Athe top of a hill, an athlete on a skateboard has x joules of mechanical energy. how much mechanical energy will she have at the bottom of the hill? ignore the effects of friction.