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Daniel's p/w,waves
my work,power,and waves study stack
| Question | Answer |
|---|---|
| What is a wave? | Vibrations caused by a medium. |
| What is a medium? | The material in which a wave can travel through(solid,liquid,gas). |
| Define a transverse wave. | Its when particles move perpendicular to the direction the wave travels. |
| Whats is the CREST of a transverse wave? | The high point of a wave. |
| What is the TROUGH of a transverse wave? | The low point of a wave. |
| Define longitudinal wave. | When the particles move back and forth in the way it travels. |
| Define compression. | Something that is pushing or being pushed together. |
| Define rarefaction | Something that is pulling or being pulled apart. |
| What is a mechanical wave? | Its a wave that require a medium. |
| What is a electromagnetic wave? | Its the vibrations of electric and magnetic fields. |
| Define amplitude. | A measure of far particles move from the rest position. |
| What is wave length? | The distance between each wave. |
| Define frequency. | The number of waves that pass a point in a certain amount of time. |
| What is the measure of frequency? | Hertz(Hz). |
| What is wave speed? | The interaction of atomic particles. |
| Define power. | The amount of work used in a certain amount of time. W(T)=P |
| Define work. | The amount of force used in a distance. F(D)=W |
| Define force | strength or energy as a attribute to the physical state of somthing. |
| 360 newtons of force are needed to push a crate 9 meters,what is the work needed to push the crate? | 40 joules |
| How much work is done holding a 15N snack for 5 minutes? | 3 joules |
| a person uses 300 joules of work in 15 seconds.How much power did they use? | 20w |
| To measure the wavelength of a transverse wave measure,_______to_______or_________to________. | Crest to crest,or trough to trough. |
| To measure the wavelength of a longitudinal wave measure,______to______or,________to_________ | compression to compression,or rarefaction to rarefaction. |
| A speaker is transmitting a loud and high pitch sound.What would the frequency and amplitude be? | High amplitude and high frequency. |
| What is power measured by? | Watts. |
| What is power measured by? | Joules. |
| ___________________is the rate at which work is done or used. | Power |
Created by:
Daniel4829
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