Show:
True or False
Definitions
Types of Simple Machines
Questions
Work problems
100
Simple machines have many moving parts.
What is False
100

What is an inclined plane wrapped around a pole?

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
Is work being done when you lift up a book?

yes

200

Simple machines usually trade more force for less distance.

False

200

Which simple machine is a rod or plank that pivots around a fixed point?

What is lever

200

What simple machine is a screw driver when used to tighten a screw?

wheel and axle

200
What simple machine would a person use to lift a heavy rock?
What is lever
200

How much work is done when a 10N force is applied up a ramp that  is 12m long? Must say unit too!

120J

300

Mechanical Advantage is the amount of distance that a simple machine must go to make work easier.

What is False

300

A ramp is called a?

What is inclined plane

300

Label the output force, input force, and fulcrum on diagram of the tweezers.

a

300
Michelle needs to move heavy boxes into a truck. Which simple machine will she most likely use?
What is an inclined plane
300
What is an example of a wheel and axle?
What is ferris wheel or doorknob
400

A baseball bat is a 2nd class lever.

False

400

Give the definition of a wheel and axle.

two round objects that rotate on a similar axle.

400
What are the types of simple machines?
What is pulley, wheel and axle, wedge, inclinded plane, lever, wedge, and screw
400
Which simple machine is a slide an example?
What is an inclined plane
400

What class of lever is a hockey stick

3rd

500

A simple machine with a mechanical advantage of 1 uses the same amount of input force as output force.

True

500

Give the definition of a fixed pulley and its mechanical advantage.

pulley that doesn't move and has a MA=1

500

Which simple machine is an axe?

lever

500
Which simple machines can be found on a can opener?
What is a lever, wedge, wheel and axle
500

What class lever is a shovel?

1st