1. A car hits a tree and doesn't stop, but keeps going until it's severely damaged. Why?
2. When a space capsule returns to Earth after a mission, it glows red-hot as it enters the atmos-
phere because of
3. Mark and his friends love the Terminator roller coaster because of its two 360° loops. Nobody
falls out when the cars are upside-down because of?

4. Josh and Ramon head toward each other on their
rollerblades at the same, breakneck speed. But, because
they are going opposite directions, they do not share the
same
5. The blade of an ice skate melts the ice beneath it and
reduces
6. Joleen shoots an arrow at a target many feet away, but the
arrow curves toward the ground before it gets to the target,
due to the force of
7. The sleek shape of a bobsled reduces
greater speeds.
and allows
8. A pool player hits the eight ball which slams into a second
ball. The eight ball stops, but the second ball goes forward,
because of
9. Michael waxes his skis so they'll go faster. He's reducing the
force of
10. Scott falls off his skateboard. He comes to a crashing stop
against the sidewalk, but his skateboard rolls on because of
11. Showing off, Megan swings a bucket of water around in
circles, upside-down. No water spills out. Why?
12. The snowboard sits at the bottom of the hill, unmoving, until Andrea gets on it and pushes it
along.
kept it from moving.
13. Jim's little sister isn't swinging very high, so he gives her a huge push to get her higher. This
shows an increase in
14. Kate drops her math paper out of her second floor bedroom window to share with her friend,
Evan, who is waiting below. It takes a really long time for the paper to get down to him
because of
15. Tom bragged to Tara that he watched a centipede crawl the whole length of his room in the
time he did his homework. His room is 16 feet long and his homework took 2.5 hours, so
he's saying the centipede traveled at 6.4 feet per hour. What characteristic of motion has he
calculated?
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