Where should the fulcrum be located in this lever to get the greatest mechanical advantage? Options: at position II, because the effort arm and the load arm should have equal lengths; at position IV, because the effort should be applied as close to the fulcrum as possible; at position I, because the length of the effort arm should be greater than the length of the load arm; at position III, because the length of the load arm should be greater than the length of the effort arm.

HSPS Simple Machines Test

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8th Grade
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Hard
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26 questions
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1.
FLASHCARD QUESTION
Front
Back
at position I, because the length of the effort arm should be greater than the length of the load arm
2.
FLASHCARD QUESTION
Front
A 62 kg box is lifted 12 meters off the ground. How much work was done?
Back
744.0 J
3.
FLASHCARD QUESTION
Front
Calculate the amount of work done if you use a 100N force to push a 50kg box 5m across the kitchen floor.
Back
5000 J
4.
FLASHCARD QUESTION
Front
Which of the following is work NOT being done? Walking, Shooting a bow and arrow, Writing an essay, A magnet picking up a paperclip
Back
Writing an essay
5.
FLASHCARD QUESTION
Front
A 16 N force is applied to an object and 96 J of work is done. How far was the object moved?
Back
6 meters
6.
FLASHCARD QUESTION
Front
If Farmer Jones had to lift a bale of cotton to a height of fifteen feet, which would be the MOST practical solution among the following options: lever, screw, inclined plane, block and tackle (pulley)?
Back
block and tackle (pulley)
7.
FLASHCARD QUESTION
Front
We can classify both the shovel and the garden trowel as compound machines. This is because each garden tool contains two simple machines:
Back
a lever and a wedge
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