Simple Machines

A painter lifts a can of paint that weighs 48 Newtons a distance of 3 meters. How would you calculate how much work he does? (work = distance x force)

• 3m ÷ 48N
• 48N ÷ 3m
• 48N × 3m
• none of the above

Identify this simple machine

• Lever
• Wheel & Axle
• Inclined Plane
• Screw

Two examples of a pulley...

• knife & axe blade
• lightbulb & screw
• flagpole hoist & window blinds
• catapult & teeter totter

Which of the following does a simple machine do?

• allows the users to apply less force over a longer distance
• reduce the amount of force needed to do work
• change the direction of the applied force
• all of the above

An inclined plane wrapped around a rod forms this simple machine 

• lever
• pulley
• screw
• wedge 

Tags

NGSS.HS-PS2-1

Lightbulb

• wedge
• pulley
• incline plane
• screw

What type of simple machine is this?

• wheel and axle
• gear
• lever
• inclined plane

_________ is an example of a lever.

• Hammer
• Crowbar
• Wheelbarrow
• All of the above

The greatest amount of force is required to move the metal block up which inclined plane?

• A
• B
• C
• D

What type of simple machines does the photo show?

• Lever and wedge
• Inclined Plane and lever
• Pulley and wedge
• Lever and screw