Simple Machines
Across
- 3. a device that makes work easier. We use them in our everyday lives.
- 5. a simple machine that would help chop down a tree
- 6. without this simple machine, your desk would fall apart
- 8. an inclined plane is wrapped around a ________ to make a screw
- 11. two round objects working together that can make a doorknob
- 13. if you combined a wheel and axle, lever, and a wedge to make a can opener, what would this be called?
Down
- 1. It can lift objects to higher places using a fulcrum point. Ex: seesaw
- 2. the point in the middle of a lever; allows a seesaw to move the way it does.
- 3. a wheelbarrow is a ______ class lever
- 4. you might use this simple machine if you were pushing a heavy box into a moving truck
- 7. if a ball moves in the direction that it is pushed, this is being done.
- 9. if you were to pull down on a pulley, that input force would be called ______
- 10. There are _ different classes of levers
- 12. a unit of energy;a newton-meter
- 14. a simple machine that would help hang your clothes up to dry