Simple Machines
Across
- 5. During the school day, I use many of these; some examples are scissors and pencil sharpeners.
- 11. This inclined plane can often be found on a playground.
- 12. Gravity and friction are types of this.
- 13. This simple machine has many different uses but many people are surprised that it opens a door.
- 14. These items don't change the amount of work necessary to do a job, but they make the job easier to do.
- 17. This lever can be found on many schoolyard playgrounds.
- 18. This is how many simple machines that you can name.
- 19. People use a pulley on this tall pole every morning and evening.
Down
- 1. When I swing a baseball bat or sweep the floor, my hand acts as one of these.
- 2. In the winter, many people will rub their arms together to create heat from this force.
- 3. The back of the moving van has one of these so people can easily push heavy loads up into the truck.
- 4. This wheel and axle is something that people use to get into rooms.
- 6. This simple machine that hold items together comes in many different sizes.
- 7. I can use this wedge to butter my bread or cut my sandwich.
- 8. Cranes will use this simple machine to lift cargo from the ground onto a ship.
- 9. This invisible force keeps objects from floating in the air.
- 10. 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.
- 14. This wheel and axle can help turn screws into a surface.
- 15. You will find this screw on the top of many containers - it is a synonym for top.
- 16. A lumberjack uses this example of a simple machine to cut trees.