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Science study stack
| Question | Answer |
|---|---|
| What is the definition of force? | Force is a push or pull exerted on an object. Examples are pulling a wagon,pushing a box and ect. |
| What is the definition of work? | Work is the use of force to move an object. |
| What is the definition of wave? | A wave is a disturbance that transfers energy. Examples are longitudinal wave,transverse,electromagnetic,and mechanical. |
| What is the definition of medium? | A medium is a material which a wave needs to travel through but electromagnetic waves do not need one. |
| What is the definition of crest? | A crest is the highest part of the wave so above the the rest position. |
| What is the definition of trough? | A trough is the lowest part of a wave so under the rest position. |
| What is a longitudinal wave? | A longitudinal wave is when energy goes from one end to another. An example is a megaphone. |
| What is compression? | Compression is an increase of pressure. |
| What is rarefaction? | Rarefaction is a decrease of pressure. |
| What are mechanical waves? | Mechanical waves are waves that require a medium. Examples are sound,ocean waves,and ect. |
| What are electromagnetic waves? | They are waves that don't need a medium and some examples are UV rays,light,and ect. |
| What is Amplitude? | Amplitude is the measure of how far particles are from the rest position. |
| What is wavelength? | Wavelength is the distance from any point on the same wave so trough to trough or crest to crest. |
| What is the definition of frequency? | Frequency is the number of waves that pass at a given time.Frequency is measured in Hertz. |
| What is the definition of Hertz?(Hz) | Hertz is what frequency is measured in. (Hz) |
| What is wave speed? | Wave speed is the speed which the wave travels. |
| What is the definition of power? | Power is the ability to do work. |
| What is a transverse wave? | A transverse wave is a wave that travels up and down at different speeds. |
| If 1,170 joules of work was produced in 26 seconds, how much power was use? | Work divided by time 1,170 divided by 26 45 watts |
| If 69 watts is produced in 20 seconds, how much work is done? | Power times time 69 times 20 1,380 Joules |
| Say the wave you are recording goes 20 meters per second and 5 waves pass in that time, what is the wavelength? | Wave speed divided by frequency 20 divided by 5 4 Hz(Hertz) |
| You learned that there are many types of electromagnetic waves, name two of the many choices. | Examples UV radiation flashlight X-Ray radio waves and many more |
| If you remember we talked about if the wave is far from its rest position then it has high what? | It would have high amplitude. |
| If you remember a transverse wave has particles that move (what) to the direction the wave is moving? | The particles move perpendicular to the direction the wave is moving. |
| You learned that the wavelength of a longitudinal wave is measured different than other waves, how is it measured? | They are measured from compression to compression and rarefaction to rarefaction. |
| You learned that sound cant travel through space so you know it needs a medium, what are some types of mediums? | Examples solid liquid gas and more but these are not the specific types |
Created by:
coolgirlxt456
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