Question

true or false?
read the statements given below. if the statement is true, write \t\ on the line in front of the sentence. if it is false, write \f,\ and then rewrite the statement so it is true.

1. waves transfer matter forward.
2. energy is the capacity to apply a push or pull to an object.
3. a trough is the highest point in a wave.
4. the wavelength is the distance from crest to trough.
5. the amplitude of a wave is the height of a wave crest or the depth of a wave trough from the rest position.
6. the larger the amplitude, the less energy is transported by the wave.
7. amplitude is the number of motions that occur in a given time.
8. frequency is measured in units called hertz.
9. the wavelength of a wave increases as frequency increases.

Explanation:

1. Waves transfer energy, not matter.
2. Energy is the capacity to do work. Force is a push or pull.
3. A trough is the lowest point; the crest is the highest.
4. Wavelength is from crest - to - crest or trough - to - trough.
5. Amplitude is height from rest to crest or depth from rest to trough.
6. Larger amplitude means more energy.
7. Frequency is the number of motions in a given time. Amplitude is related to height/depth.
8. Frequency is measured in hertz (Hz).
9. Wavelength and frequency are inversely related (\(v = f\lambda\), \(v\) is constant for a medium).

Answer:

1. F, Waves transfer energy forward.
2. F, Force is the capacity to apply a push or pull to an object.
3. F, A crest is the highest point in a wave.
4. F, The wavelength is the distance from crest to crest (or trough to trough).
5. T
6. F, The larger the amplitude, the more energy is transported by the wave.
7. F, Frequency is the number of motions that occur in a given time.
8. T
9. F, The wavelength of a wave decreases as frequency increases.