Types of Levers
Definitions
Types of Simple Machines
Questions
Formulas
100

A seesaw is an example of this class of lever

What is a first class lever

100
What is an inclined plane wrapped into a spiral?
What is a screw
100
Which simple machine is a doorknob an example?
What is wheel and axle
100
How does a knife function as a wedge?
What is it pushes food apart
100

This is the formula for work.

Work = force  x  distance
200

A wheelbarrow is an example of this type of machine

What is a second class lever

200
Which simple machine is a straight bar that moves on a fixed point?
What is lever
200
How many types of simple machines exist?
What is 6
200
What simple machine would a person use to lift a heavy rock?
What is lever
200

This is equal to work divided by time.

What is power

300

Tweezers are an example of this class of lever.

What is a third class lever.

300
A simple machine with a flat surface and one end higher than the other.
What is inclined plane
300

Which simple machines increases the distance over which the force is exerted?

What is an inclined plane?

300
Michelle needs to move heavy boxes into a truck. Which simple machine will she most likely use?
What is an inclined plane
300

This is the formula for mechanical advantage in reference to force. 

Output force

input force
400

This class of lever has the load or resistance force in the middle.

What is a second class lever.

400
What is a simple machine made of a wheel attached to a rod?
What is a wheel and axle
400

What type of simple machine changes the direction of the force?

What is pulley

400
Which simple machine is a slide an example?
What is an inclined plane
400

The formula for ideal mechanical advantage

distance in

distance out

500

This class of levers has the effort or input force in the middle.

What is a third class lever.

500
Name the simple machine that uses a rope and a wheel?
What is a pulley
500
Which simple machine has slanted sides and is used to cut and split things apart?
What is wedge
500
Which simple machines can be found on a can opener?
What is a lever, wedge, wheel and axle
500

This is the formula for efficiency

what is AMA/IMA  x100?

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