SPS 8 & 9 1. Draw an arrow in yellow showing the amplitude.

2. In this picture draw an arrow in blue showing the wavelength.

3. If you increase the amplitude of a sound wave what would happen to the sound?

4. If you change the wavelength of visible light what would happen to what you see?

5. According to “Light Years Activity Assignment” Distances in space are so vast that units like miles and
kilometers are not practical. What do we use instead of kilometers and miles to measure distance?

6. What type of simple machine is this?
a. Lever
b. Inclined plane
c. Wedge
d. Pulley
e. Wheel & Axle
f. Screw

7. What class of lever is this?
a. First class
b. Second class
c. Third class

8. What type of simple machine is this?
a. Lever
b. Inclined plane
c. Wedge
d. Pulley
e. Wheel & Axle
f. Screw

9. What class of lever is this?
a. First class
b. Second class
c. Third class

10. Is pushing on a box using a force?

11. If two forces are pushing on a box and the box is not moving, are the forces unbalanced or balanced?

12. If two forces are pushing on a box and the box moves left, are the forces balanced or unbalanced?

13. An object moves at a constant speed in the same direction. Are the forces balanced or unbalanced?

14. If I throw a ball in outer space and it goes on forever which was on Newton’s laws does that
demonstrate?

15. Air exerts a force one way and a rocket ship moves in the other direction. Which one of Newton’s laws
is being demonstrated?

16. Calculate the total force in this problem. 5N → ←7N

17. Which way will this object move, right or left? 7N → ←5N

18. What is the net force on this object? 6N → 2N →
Speed/Velocity/Acceleration
19. If you are turning in a circle, are you accelerating?

20. Is 60 miles down, speed or velocity?

21. Does this line on a speed v. time graph demonstrate
a. Positive acceleration
b. Negative acceleration
c. Constant Speed
d. Rest

22. Does this line on a speed v. time graph demonstrate
a. Positive acceleration
b. Negative acceleration
c. Constant Speed
d. Rest

23. Does this line on a DISTANCE v. time graph demonstrate
a. Positive acceleration
b. Negative acceleration
c. Constant Speed
d. Rest

24. Calculate the speed. A car is driving 20 mph for five hours. S=D/T

25. Calculate acceleration. A car is driving at 40 mph. The driver sees a police car approaching and slows
down to 30 miles an hour. Total time was 2 hours. Vf-Vi/T = A