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Work
| Question | Answer |
|---|---|
| Work | is done when a force moves something |
| force/distance | Work is the measured by the amount of_________ times______________ |
| Easier | Simple machines make work____________ |
| Energy | is the ability to do work. |
| kinds | there are many _______ of energy |
| change | Energy can _________ from one form to another |
| stored | Batteries, food, and fuel have energy that can be used later to do work. This kind of energy is called _______ energy. |
| light | light, bolt sunlight, candle flames |
| electrical | iron, cooking, computer, cell phone |
| mechanical | walking, running, moving, bike pedals, coasting downhill. |
| Friction | A force that slows or stops motion |
| Magnetism | The force of a magnet |
| Gravity | The force that pulls objects toward the center of the earth |
| Force | A push or pull |
| Weight | The amount of force gravity has on an object |
| True | Objects cannot move unless a force causes them to move |
| the same | An object moves ___________ direction as the force it moves in |
| Easier | Simple machines make work _______ |
| True | There are many kinds of energy |
| True | Batteries, food, and fuel are examples of stored energy |
| Motion | is a change of position |
| Direction/far | Motion can be described by what _____ an object is going, how _______ it is going, and how fast it is going |
| faster/direction/slow down | A force can make an object go |
| Energy | is the ability to do work |
| changed | Energy can be ____________ from one form to another |
| stored | Energy that can be used later to do work is called ____________ energy |
| light/mechanical | Sound, ______, electrical energy__________ energy, and chemical energy are different kinds of energy. |
| When is work done? | Work is done when a force moves it. |
| What are five things that can do work? | flowing water moves logs, rocks, boats, and water wheels |
| How is work measured | Force x distance= work |
Created by:
kdemmings
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