Simple machines

Simple Machines

SIMPLE MACHINES

A machine is a device that makes work easier by changing the size or direction of a force.

When you use a machine, you do work to the machine, while the machine does work on something else.

Mechanical advantage

is the number of times the machine multiples force.

A simple machine that has a bar that pivots at a fixed point called a fulcrum.

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​LEVER

A simple machine that consists of a wheel over which a rope, chain, or wire passes.

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​PULLEY

A simple machine that consists of two circular objects of different sizes.

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​Wheel and Axel

A simple machine that is a straight , slanted surface, and facilitates the raising of loads.

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​Inclined Plane

​Used to hold things together

SCREW

​A wedge is simple machine that consists of two inclined planes, giving it a thin end and thick end,.. A wedge is used to cut or split apart objects

​Wedge

SIMPLE MACHINES

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Multiple Choice

Identify the incline simple machine

Open Ended

Identify the simple machine

Multiple Choice

A drill bit would be an example of what kind of simple machine

• Wheel and Axle

• Pulley

• Screw

• Incline Plane

Multiple Choice

A Wheel Champ ramp would be an example of which type of simple machine.

• Pulley

• Incline Plane

• Wedge

• Wheel and Axle

Multiple Choice

Identify the simple machine in the picture.

• Wedge

• Lever

• Wheel and Axle

• Inclined Plane

Multiple Choice

A crane would be an example of which type of simple machine?

• Lever

• Wedge

• Wheel and Axle

• Pulley

COMPOUND MACHINES

A compound machine consists of two or more simple machines combined together to make work easier and increase the mechanical advantage.

Multiple Choice

What two simple machines are used in a wheel barrow?

• Wheel/axle and lever

• lever and pulley

• Incline plane and lever

• none

Multiple Choice

A seesaw is an example of what kind of simple machine?

• Lever

• Inclined plane

• Pulley

• Wedge

Multiple Choice

A door knob is an example of which simple machine

• Lever

• Pulley

• Wheel and Axle

• Screw