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- 1. Multiple ChoiceWhat is the definition of work?doing homeworkthe use of force to move an object over a distancesweeping the floor
- 2. Multiple Choice
3. Which type of lever is this?First Class LeverSecond Class LeverThird Class Lever - 3. Multiple Choice
Which type of lever would be in this image?
First Class Lever
Second Class Lever
Third Class Lever
Not a lever at all
- 4. Multiple ChoiceThis baseball pitcher is demonstrating which type of lever at the shoulder?1st class2nd class3rd class4th class
- 5. Multiple Choice
A box of weight W is lifted by a force F using a lever as shown below.
What is the mechanical advantage of the lever (MA=Input Distance/Output Distance)?
0.5
2
3
6
- 6. Multiple ChoiceIf a lion drags his prey 10 meters to his den doing 500 joules of work, how much force did he use?50 Newtons500 Joules50,000 Newtons10 Newtons
- 7. Multiple ChoiceHow can you decrease the effort force needed to push a weight to the top of the ramp?cover the surface with carpetincrease the length of the rampincrease the height of the rampdecrease the length of the ramp
- 8. Multiple ChoiceJeff is a landscaping contractor and lifts a rock weighing 600 pounds by wedging a board under the rock. Jeff weighs 150 pounds and puts all of his weight on the lever. How much mechanical advantage did the lever provide to Jeff in lifting the rock?0248
- 9. Multiple ChoiceThe mechanical advantage of this inclined plane is.....2.43.44.4
- 10. Multiple Choice
Where is the resistance/load found in a second class lever?
closest to the fulcrum
on one side of the fulcrum by itself
the length of the plane
the full length of the arm
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