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Questions and Answers
What does mechanical advantage (MA) measure?
What does mechanical advantage (MA) measure?
What unit is used to measure force in mechanical advantage calculations?
What unit is used to measure force in mechanical advantage calculations?
How does changing the input distance affect the output distance in a system with a constant speed ratio?
How does changing the input distance affect the output distance in a system with a constant speed ratio?
Study Notes
Mechanical Advantage
- Mechanical advantage (MA) is the ratio of output force to input force.
- MA = Output force / Input force
- No units
Force
- Force is measured in Newtons (N).
- Applied to an object to cause movement or change in motion.
- Input force - force applied to a machine.
- Output force - force applied by the machine to an object.
Speed Ratio
- Speed Ratio (SR) = Input distance / Output distance
- No units
Solving for Input/Output Distance
- Input distance = Output distance x Speed Ratio (SR)
Examples
- A pulley system has a mechanical advantage of 5. This means the output force is 5 times greater than the input force.
- A person pulls a rope (input) 12 meters and lifts a box (output) 4 meters. The speed ratio of the pulley is 3.
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Description
Test your understanding of mechanical advantage, force, and speed ratio with this quiz. Explore how these concepts relate to machines and learn to solve for input and output distances. Perfect for physics students looking to reinforce their knowledge on these key topics.
