Mechanical Advantage and Efficiency
Flashcard
•
Science
•
8th Grade
•
Practice Problem
•
Hard
Wayground Content
FREE Resource
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15 questions
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1.
FLASHCARD QUESTION
Front
What is Mechanical Advantage (MA)?
Back
Mechanical Advantage (MA) is a measure of the force amplification achieved by using a tool, mechanical device, or machine. It is calculated as the ratio of output force to input force.
2.
FLASHCARD QUESTION
Front
How do you calculate Mechanical Advantage?
Back
MA = Output Force / Input Force
3.
FLASHCARD QUESTION
Front
What is the formula for Efficiency?
Back
Efficiency = (Work Output / Work Input) x 100
4.
FLASHCARD QUESTION
Front
If a lever has an input force of 20 N and an output force of 100 N, what is the Mechanical Advantage?
Back
5
5.
FLASHCARD QUESTION
Front
What does a Mechanical Advantage greater than 1 indicate?
Back
It indicates that the machine amplifies the input force, making it easier to lift or move a load.
6.
FLASHCARD QUESTION
Front
What does a Mechanical Advantage less than 1 indicate?
Back
It indicates that the machine does not amplify the input force, and more input force is needed to lift the load.
7.
FLASHCARD QUESTION
Front
What is the relationship between input force and output force in a pulley system?
Back
The input force is the force applied to the pulley, while the output force is the force exerted by the pulley to lift the load.
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