1. Anna Ward James Martin MS
Simple Machines
Anna Ward
James Martin MS

2. Do Now!!!!
Using BRAINS, please read the article provided. This is for a grade. I will be looking to see if you completed each step.

3. Announcements
Six days to EOGs
Expectations for Science class
Agenda

4. Simple Machines

5. What is a simple machine?
Simple machines: One of the basic machines on which all other mechanical machines are based.

6. Why do we use machines?
Mechanical Advantage: The number of times a machine multiples the input force; output force divided by input force.

7. There are six types of simple machines:
The Wedge
the Inclined Plane (ramp),
The Screw
The Lever
The Pulley
The Wheel and Axle

8. The Wedge
A wedge is an object with at least one slanting side ending in a sharp edge, which cuts material apart.

9. The inclined plane
An inclined plane is a slanting surface connecting a lower level to a higher level.

10. The Screw
A screw is an inclined plane wrapped around a pole which holds things together or lifts materials.

11. The Lever
A lever is a stiff bar that rests on a support called a fulcrum which lifts or moves loads.

12. The Pulley
A pulley is a simple machine that uses grooved wheels and a rope to raise, lower or move a load.

13. The Wheel and Axle
A wheel and axle is a wheel with a rod, called an axle, through its center lifts or moves loads.