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Simple Machines and Mechanical Advantage Quiz

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Simple Machines and Mechanical Advantage Quiz

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Questions and Answers

What is the formula for mechanical advantage (M.A)?

Input force / Output force

Load / effort

Output force - input force

Output force / input force (correct)

Which of the following statements about efficiency is correct?

Efficiency has units since it involves power.

Efficiency can never be expressed in terms of Mechanical Advantage (M.A).

Efficiency is always greater than 1.

Efficiency is a ratio of work output to work input. (correct)

In a First-Class Lever, where is the fulcrum located?

It varies depending on the specific lever

Between the load and the effort (correct)

Closest to the load

At one end of the lever

What does the term 'Velocity Ratio' describe?

The ratio of distances moved by the load and the effort Signup and view all the answers

Which lever class has the load positioned between the effort and the fulcrum?

Second-Class Lever Signup and view all the answers

In a wheelbarrow, which part acts as the fulcrum?

The axle of the wheel Signup and view all the answers

What is the mechanical advantage (MA) of a third-class lever?

MA is always less than 1 Signup and view all the answers

Which of the following is an example of a third-class lever?

A fishing pole Signup and view all the answers

What is the formula for the mechanical advantage (MA) of an inclined plane?

MA = $l/h$ Signup and view all the answers

What is the formula for the mechanical advantage (MA) of a screw?

MA = $2\pi r/p$ Signup and view all the answers