Simple Machines

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?

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