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WorksheetsSimple Machine Pulley Quiz
Total questions: 12
Worksheet time: 3hrs 0mins
Bob uses a pulley to lift his car 5 meters, he uses a force of 935 N. How much work has Bob done?
78 joules
4,675 joules
2,437 joules
253 joules
True or false: Using a pulley with 1 rope creates a mechanical advantage over not using a pulley.
True
False
Bill uses a pulley with 1 rope to lift a box. He applies a force of 126 N, the resistance force is also 126 N. If he adds another rope to his pulley, how much force does he need to apply this time?
504 N
2 N
252 N
63 N
Sally used a pulley to lift her couch onto a moving truck. She pulled with a force of 19 N and completed 32.3 joules of work. How many meters of rope did she pull?
.58 meters
13.6 meters
1.7 meters
2.4 meters
What is the mechanical advantage of a pulley with 4 ropes?
4
3
2
1
A pulley is being used to lift boxes. It has a mechanical advantage of 7 and a resistance force of 2478 N. What is the effort force exerted on the pulley?
408 N
354 N
20 N
87.7 N
What is the best method to lift a heavy object using a pulley while exerting the least force?
Adding more ropes to the pulley
Using only 1 rope on the pulley
John lifts a dumbbell up 1 meter, Jane lifts the same dumbbell up 2 meters with a pulley with 2 ropes. Jane is exerting half the amount of force of John. Who has done the most work?
John
Jane
They have done the same amount of work
What is the relation of the number of ropes on a pulley and the mechanical advantage?
The number of ropes is equal to the mechanical advantage
The number of ropes is greater than or equal to the mechanical advantage
The number of ropes is less than or equal to the mechanical advantage
There is no relation
If you decrease the amount of ropes on your pulley, how does the amount of force needed to apply change?
The force needed decreases
The force needed increases
The force needed doesn't change
Bob is using a pulley to lift something, he knows his effort force and the resistance force. How would he find his mechanical advantage?
By divding his effort force by his resistance force
By dividing his resistance force by his effort force
By multiplying his effort force and resistance force
There is not enough information
Shrek has done 1788 joules of work, he exerted 223.5 N of force on a pulley to lift to Donkey. How many meters did Shrek lift Donkey?
24 meters
8 meters
47 meters
62 meters
