Simple Machines

A flight of stairs is an example of-

• Wedge

• Inclined Plane

• Wheel and Axle

• Pulley

• All of the answers

Using an incline plane will make work easier by breaking an upward/downward movement into smaller sections.

• False

• Too complicated to identify.

• True

A shorter, steeper ramp will require more effort to to get an object up 10 ft than a longer, less steep ramp.

• True

• False

• This can not be calculated

Which of the following inclined planes will result in less effort if you need to load 1000 lbs of lumber into a moving truck?

• A 2 foot long ramp

• A 10 foot long ramp

• A 15 ft long ramp

• The length of the ramp will not impact the effort.

A Wheelbarrow is an example of a -

• Second Class Lever

• First Class Lever

• Third Class Lever

• Fourth Class Lever

What is a fulcrum?

• The place where the effort force is applied

• the place where the lever force output is located

• the place where the lever is pivoting on, or place where the lever is resting

• None of the answers

A lever with a fulcrum in the middle is a-

• First class lever

• Second class lever

• Third class lever

What type of lever is this?

• 3rd class

• 2nd Class

• 1st class

• 1st and 3rd class

What type of lever is this?

• Third class lever

• First class lever

• Second Class lever

• Fulcrum

If you increase the distance of the lever on the input force, you will be able to have a greater output force-

• True

• False

• What is input force and output force???

• I am going to fail this test