Across
- 1. a point on a lever which don't moves.
- 4. the muscular force is also known as __________.
- 6. potential energy + kinetic energy
- 8. the force which the magnet ___________on the nails is called magnetic force.
- 10. simple machine used to move things from one place to place
Down
- 1. proper greasing between the sliding parts of the machine reduces_______.
- 2. ________is also an inclined plane.
- 3. used in construction, cranes and modern elevators.
- 5. the Moon is _______ the size of the Earth.
- 7. used to cut things.
- 9. the moon's gravity pulls on the ________ and makes the tides rise and fall every day.