Simple Machines
Across
- 1. Used for the maintenance of machines
- 4. fixed point in a lever
- 6. inclined plane wrapped around a plane
- 8. Class 1 lever used to cut objects like paper
Down
- 2. Class 2 lever used to crack open a walnut
- 3. used to lift sofa from ground floor to fourth floor
- 5. Class 3 lever used to pick up an object
- 7. reduces friction in machines and acts as lubricant