Across
- 1. a simple machine that is an inclined plane wrapped around a cylinder
- 3. the rate at which work is done or the rate at which energy is converted from one form to another or transferred form one place to another
- 7. the thickness of a liquid, caused by the friction of its molecules rubbing together
- 8. a measure of turning effort
- 9. a simple machine that consists of two inclined planes back to back
- 11. in a simple machine, the ability to move a large resistance by applying a small effort
- 13. a force that acts like a break on moving objects
- 14. a system of levers used to transmit motion
- 15. a rotating wheel-like object with teeth around its rim used to transmit force to other gears with matching teeth
- 16. a way of changing one kind of effort into another kind of effort
Down
- 2. a measurement of the amount of effort needed to change one kind of energy into another
- 3. a simple machine in the form of a wheel with a groove around its rim to accept a rope, chain, or belt; used to lift heavy objects
- 4. a device that does some kind of work by changing or transmitting energy
- 5. a simple machine that is a special kind of lever; effort applied to the outer edge of the wheel is transmitted through the axle
- 6. a simple machine in the form of a sloping surface or ramp, used to move a load from one level to another
- 7. the speed of an object
- 10. a simple machine that consists of a bar and fulcrum (pivot point); used to increase force or decrease the effort needed to move a load
- 12. the effort applied to a given area