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Energy Vocab
Energy Vocab Cards Question and Answer By: Jake Pettit
| Question | Answer |
|---|---|
| Wave | A disturbance that transfers energy |
| Medium | The material - Solid, liquid, or gas - through which a wave can travel |
| Transverse wave | In a transverse wave, particles move perpendicular to the direction the wave travels |
| Crest | The point were the wave is at its highset |
| Trough | The lowest point in a wave |
| Longitudinal Wave | Particles move back and forth in the same direction that the wave travels. |
| Compression | When a longitudinal wave closes in on itself |
| Rarefaction | When a longitudinal wave spreads apart |
| Mechanical Waves | Waves that require a medum |
| Electromagnetic Waves | Waves that do not disturb a physical medium |
| Amplitudes | How far particles move in the medium from their rest position. |
| Wavelength | The distance from any point to the next identical point in the same wave |
| Frequency | The number of waves that pass through a point in a given amount of time |
| Wave speed | The speed that waves travel |
| Hertz (Hz) | A unit of measurement used to measure frequency |
| Force | A push or pull exerted on an object |
| Work | The use of force used to move an object some distance |
| Power | The rate of work that is being done |
| Joe pushes a box with 50 N of force for 50 meters how much work does he do? | 2500 N |
| Chuck pulls a wagon with 2500 N of force for 50 seconds how much power did he use? | 50 Joules |
| What is the formula for work? | Work = Force x Distance |
| What is the formula for power? | Power = Work / Time |
| What is the formula for wave speed? | Wave Speed = Distance / Time |
| A wave traveled 50 meters in 2.5 seconds. What is its speed? | 20 Hertz |
| What is the highest point in a wave? | Crest |
| What does a sound wave travel best through? Gas, solid, or liquid. | Solid |