### SC 130 Physical Science Quiz Two ●
Name:

Science is built on
experimentation. Science is a field in which a theory is not
considered tested until experiments have been unable to prove the
theory false. In lecture I present theories and we work homework
problems. But the only thing you know for sure based on
experimentation is that there is a relationship between distance and
time for a ball rolling. And the 8:00 lab section should still have
doubts about the nature of the relationship due to some of the data
they collected.

The 8:00 science team
reinvented the laboratory, allowing a subsequent team of scientists
working at 11:00 to collect more data more efficiently. The following
data comes from the 11:00 section:

Use the above to
answer the following questions:

1.
___________________ Given a time of 0.88 seconds, and a distance of
10.00 meters, calculate the average speed of the ball using the
formula d = vt. Remember to include your units and keep only
significant digits!

2.
___________________ Given a time of 5.10 seconds, and a distance of
30.00 meters, calculate the average speed of the ball.

3.
___________________ Did the ball speed up or slow down during trial
four above?

4. ___________________
What are the correct units for the slope?

5. ___________________
What are the correct units for the intercept?

6. ___________________
What is the physical meaning of the slope – what does it mean?

7. ___________________
Given that distance/m = slope ×
time/s + intercept, predict the distance the ball would roll after
ten seconds. [ Ten seconds after being thrown.]

8. ___________________
Toughie: Given that distance/m = slope ×
time/s + intercept, predict the time for the ball above to travel 50
meters.

9. __________ Will the
ball obey your predictions above?

10. Why, or why not,
will the ball above obey your prediction? Use the back if you need
more space.