Simple Machines

1. A _________is a simple machine with a fulcrum and a rigid bar.

• Pivot
• Lever
• Wedge
• Pulley

The place where a lever pivots is called the _______.

• Load
• Force/Effort
• Fulcrum
• Rigid Bar

_________ is an example of a lever.

• Hammer
• Crowbar
• Wheelbarrow
• All of the above

The push or pull on a lever is called the .........

• Fulcrum
• Force or Effort
• Resistance (Load)
• Arm

Which type of lever is this?

• First Class Lever
• Second Class Lever
• Third Class Lever
• Coach  Class Lever

Simple machines (lever, inclined plane, wedge, screw, pulley, wheel and axle) do which of the following?

• Reduce the mass of an object that needs to be moved
• Reduce the distance an object needs to be moved
• Reduce the amount of time needed to move an object over a distance
• Reduce the force needed to move an object over a distance

A simple machine is a device that helps to reduce the amount of _____ required to do work.

• force
• energy
• work
• money

____ is done when a force is applied over a distance.

• energy
• work
• force
• A Jedi using the force

A ______ is a grooved wheel with a rope running along the groove.

• lever
• pulley
• screw

A simple machine that is made up of an inclined plane wrapped around a cylinder. It is often used to hold things together.

• lever
• screw
• wedge
• velcro