Question | Answer |
What is Force? | A push or pull exerted on an object. |
What is Work? | The use of force to an object some distance. |
What is a wave? | A disturbance that transfers energy. |
What is a medium? | The material (solid, liquid or gas) through which a wave can travel. |
What is a crest? | The point where the wave is the highest. |
What is a trough? | The point where the wave is the lowest. |
What is a Longitudinal Wave? | Wave particles move back and forth in the same direction that the wave travels. |
What is Compression? | The effect, result, or consequence of being pushed together. The opposite of rarefaction. |
What is Rarefaction? | The reduction of an item's density. The opposition of compression. |
What is a Transverse Wave? | Wave particles move up and down as the wave passes. |
What are Mechanical Waves? | Mechanical Waves are waves which move through a material medium (solid, liquid, or gas) at a speed that depends on the type of medium. Examples of mechanical waves are longitudinal and transverse. |
What are Electromagnetic Waves? | Electromagnetic waves are waves that require no medium and could travel through outer space. |
What is Amplitude? | Is a measure of how far particles in the medium move from their rest position. |
What is Wavelength? | The distance from any point on a wave to the next identical point. Ex. A crest to the next crest. |
What is Frequency? | Is the number of waves that passes a point in a given amount of time. |
What is Hertz (Hz) | One hertz is equal to one wavelength per second. |
What is Wave Speed? | The speed that waves travel. Equation. Wave Speed = Wavelength/ wave period. |
If 5 kg were moved vertically 1 meter in 3 seconds, what would the power generated be? | (5kg x 1 meter) / 3 seconds = 1.66 kg-meter per second |
If 3 kg were moved vertically 2 meters, what would work be? | 6 kg-meters of work. |
If a wave has a wave speed of 10 m/s and it took 5s to pass by, what would be the wavelength? | the wavelength is 2m |
If you measure two crests on a wave, what is term that defines the measurement? | That measurement would be the wavelength. |
If a sound wave has a wavelength of 20m and the frequency of the wavelength is 5, what is the wave speed? | The wave speed would be 100 m/s. |
Which of the following would be able to travel into deep outer space without a medium, a Mechanical wave or an Electromagnetic wave? | An electromagnetic wave. |
If a sound wave is transmitting through a cement wall or a trampoline, which of those two would transmit a slower wave? | The more flexible a medium is, the slower it transmits waves. Therefore the trampoline would transmit the slower wave. |
Which of the following terms defines when a slinky is tight together rather than spread apart? Rarefaction, Compression, Amplitude? | Compression would show how the waves are compressed together and tight. |
What is power? | The rate at which work is done. P=W/t |