Simple Machines
What is the definition of a mechanical advantage?

How do you calculate a mechanical advantage?

What is a simple machine?

List the six types of simple machines and divide them into the two families.

Draw a first-class lever and label the input force, output force, and fulcrum.

Give two examples of a first-class lever.
a)
b)

Draw a second-class lever and label the input force, output force, and fulcrum.

Give two examples of a second-class lever.
a)
b)

Draw a third-class lever and label the input force, output force, and fulcrum.

Give two examples of a third-class lever.
a)
b)
How can a lever increase the force without changing the amount of work being done?

Use a diagram to explain how a pulley is like a lever.

How does an inclined plane give a mechanical advantage?

Give two examples of an inclined plane.
a)
b)

How is a wedge a modified inclined plane?

Which has a greater mechanical advantage: A long, thin wedge or a short, thick wedge?

How is a screw a modified inclined plane?

Give two examples of machines that use screws for a mechanical advantage.
a)
b)

What is a compound machine?

Give two examples of compound machines.
a)
b)

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