4. sam releases a marble at point a on a ramp. what is the highest point the marble will reach?
a: almost to b
b: just past b
c: point c
d: the top of the hill equal to point c

6. i take a wooden plate and an aluminum plate out of the freezer, where they have been overnight. what is true of the temperature of the plates?
a: the aluminum plate will be at a lower temperature.
b: both will be at the same temperature.
c: the wooden plate will be at a lower temperature.