- 1. Which object has the most potential energy?
A) Mr. Mansour falling from the 4ft. desk
B) Mr. Mansour falling from an 8ft. ladder
C) Mr. Mansour standing on an 8 ft. ladder
D) Mr. Mansour standing on a 4 ft. desk
- 2. Bob is a boxer and hits his opponent with a knockout puch. His hand has a mass of 9.7 newtons. He accelerates his hand at 4.5 meters per second. How much force did he hit his opponent with?
A) 2.16 NM
B) 14.2 NM
C) 43.65 NM
D) .46 NM
- 3. An object in motion stays in motion until acted on by another force.
A) Law of the conservation of energy
B) Newtons 3rd law
C) Newtons 1st law
D) Newtons 2nd law
- 4. For every action, there is an equal and opposite reaction.
A) Newtons 2nd law
B) Law of the conservation of energy
C) Newtons 3rd law
D) Newtons 1st law
- 5. Bill sprints a distance of 30 meters in 3 seconds. What is his velocity?
A) 10 m/s
B) 90 m/s
C) 3 m/s
D) 30 m/s
- 6. If we dropped a 300 pound woman and an 8 pound bowling ball from the same height in a vacuum, which would hit the ground first?
A) woman
B) both hit at the same time
C) bowling ball
D) neither will hit the ground
- 7. Which force slows down a basketball rolling along the ground the most?
A) friction
B) quarks
C) air resistance
D) gravity
- 8. In the real world, all objects always fall at the same rate?
A) True
B) False
- 9. Energy in motion is...
A) Potential Energy
B) Thermal Energy
C) Kinetic Energy
D) Static Energy
- 10. A force in a specific direction is called...
A) vector
B) gravity
C) friction
D) filter
- 11. If I wanted to stabilize my rocket so it didn't spin and do somersaults in the air, I would add these...
A) A nosecone
B) A fairing
C) More weight
D) Fins
- 12. Where is the best place to put fins on your water rocket to make it the most aerodynaic?
A) Middle of rocket
B) Bottom of rocket
C) Top of the rocket
- 13. Wind pulling on your rocket is called...
A) gravity
B) loops
C) newtons
D) drag
- 14. In a full paragraph (at least 5 sentences), describe what you have done to your rocket to make it fly as high as possible. Tell why you think it will or will not work well.
- 15. Explain why a car moving at 20 miles per hour has more force than a baseball traveling 90 miles per hour
- 16. Two hockey players are skating at each other. Player A has a mass of 978 newtons and skates 13 meters in 1.32 seconds. Player B has a mass of 945 newtons and skates 20 meters in 1.61 seconds. Who wins?
A) Player B by a little
B) Player A by a lot (over 100 Newtons)
C) Player A by a little a little bit
D) Player B by a lot (over 100 Newtons)
- 17. A bulldozer does 30,000 joules of work to push another boulder a distance of 20 meters. How much force is applied to push the boulder?
A) 600,000 Joules
B) 1500 Joules
C) 600,000 Meters
D) 30,020 Joules
E) 1500 Newtons
- 18. How much work does a mother do if she lifts each of her twin babies upward 1 meter? Each baby weighs 90 newtons. (Hint: There are two babies).
A) 90 Meters
B) 90 Joules
C) 90 Newtons
D) 180 Newtons
E) 180 Joules
- 19. A woman lifts her 100-newton child up one meter and carries her for a distance of 50 meters to the 3.2 child’s bedroom. How much work does the woman do? (Hint: Think of the total distance).
A) 5000 Newtons
B) 5100 Joules
C) 5000 Meters
D) 5000 Joules
E) 5100 Newtons
- 20. A high jumper with a mass of 550 newtons does 1175 joules of work. How high did he jump off the ground?
A) 646,250 newtons
B) 2.14 meters
C) 2.14 joules
D) 2.14 feet
E) 646,250 meters
- 21. A people-moving conveyor-belt moves a 600-newton person a distance of 100 meters through the airport. How much work was done?
A) 600 joules
B) 60 joules
C) 6 joules
D) 60,000 joules
E) .6 joules
- 22. A rocket has a pointed nosecone. This will help it...
A) Be more stable
B) Fly straighter
C) Reduce drag
D) Avoid obstacles
- 23. Which would have less drag?
A) A car with 2 inch tires
B) A car with 6 inch tires
C) A bike with 1 inch tires
D) A bike with 2.5 inch tires
E) A bike with .5 inch tires
- 24. Why do you add wings to your rocket?
- 25. Bill runs into a building with a force of 125.2 newton/meters. He traveled a distance of 28 meters in 5.2 seconds. What is his mass? (Hint: this is a two step problem).
A) 674.15
B) 23.25
C) .043
D) 4.32
- 26. Tim completes 136.7 joules of work over a distance of 43.2 meters. What was his force?
A) 93.5
B) 3.16
C) 5905.44
D) .316
|