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Simple Machines
Study Guide
Question | Answer |
---|---|
Force | A push or pull |
Effort | Force applied to simple machine |
Inertia | tendency of a moving object to stay in motion or a resting object to stay still. |
Friction | the force caused by two objects rubbing against each other |
Work | calculated by multiplying force x distance |
Newton | the international unit for measuring force |
Kinetic energy | objects that are moving |
Lever | is a rigid bar that pivots on a fulcrum |
Joule | a unit of work |
axle | a shaft to which one or more wheels are attached |
potential energy | stored energy |
Name three examples of Lever | Nutcracker, see saw, broom, wheel barrow |
Name three examples of wheel and axle | Steering wheel and column, wheel on a car, screwdriver turning a screw, door knob, sink faucet |