Simple Machines

2. When I swing a baseball bat or sweep the floor, my hand acts as one of these.
4. During the school day, I use many of these; some examples are scissors and pencil sharpeners.
7. This is how many simple machines that you can name.
8. People use a pulley on this tall pole every morning and evening.
9. These items don't change the amount of work necessary to do a job, but they make the job easier to do.
13. This wheel and axle can help turn screws into a surface.
15. This simple machine has many different uses but many people are surprised that it opens a door.
17. Cranes will use this simple machine to lift cargo from the ground onto a ship.

1. The back of the moving van has one of these so people can easily push heavy loads up into the truck.
3. Gravity and friction are types of this.
5. I can use this wedge to butter my bread or cut my sandwich.
6. This inclined plane can often be found on a playground.
8. In the winter, many people will rub their arms together to create heat from this force.
10. A lumberjack uses this example of a simple machine to cut trees.
11. This lever can be found on many schoolyard playgrounds.
12. This invisible force keeps objects from floating in the air.
13. This simple machine that hold items together comes in many different sizes.
14. Many people look at this simple machine and confuse it with another one that stays put when it is in use. It is often used to push things apart.
16. This wheel and axle is something that people use to get into rooms.
18. You will find this screw on the top of many containers - it is a synonym for top.