Simple Machines: Calculating Mechanical Advantage

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Science, Physics, Engineering
•
10th - 12th Grade
•
Hard
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary function of a simple machine like a screwdriver?
To change the direction of force
To decrease the resistance force
To multiply the effort force
To increase the speed of work
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is mechanical advantage defined?
The difference between effort and resistance forces
Resistance force divided by effort force
The sum of effort and resistance forces
Effort force divided by resistance force
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If an inclined plane has a mechanical advantage of 3, what does it mean?
It triples the resistance force
It triples the effort force
It reduces the effort force by one-third
It reduces the resistance force by one-third
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the pulley system example, what is the mechanical advantage if the resistance force is 40 newtons and the effort force is 20 newtons?
4
3
1
2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does a mechanical advantage of 2 imply in a pulley system?
The effort force is halved
The resistance force is doubled
The effort force is doubled
The resistance force is halved
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