Simple Machines and Engineering Basics

A wheelbarrow is an example of

• First Class Lever
• Second Class Lever
• Third Class Lever
• Fourth Class Lever

The flag pole mechanism is an example of which simple machine? 

• Inclined Plane
• Lever
• Wedge
• Pulley

Which of these is not part of the lever?

• Object
• Fulcrum
• Load
• Lever

The unit of measure for force is _____________

• meters

• joules

• miles per hour

• newtons

True or False. The formula for work is Work = Force x Distance (W= F x D).

• True

• False

A lever rotates on a fixed point called a _______________

• screw

• wheel

• ramp

• fulcrum

How much work was done when a force of 12 newtons was applied to an object and the object move 2 meters?

• 14 Joules

• 24 Joules

• 14 Newtons

• 24 Newtons

In this illustration,

• the machine is decreasing mechanical advantage
• the machine is increasing mechanical advantage
• mechanical advantage is not changed

____________ is a force that slows objects down when they rub against each other.

• Plane
• Friction
• A wedge
• A lever

________ are wheels with teeth that fit together.

• Tires
• Gears
• Pulleys
• Wedges