我又来了,还是英文物理,还是要英文答案.

1.Define,in your own words,the following terms:amplitude wavelength,frequency,period.
ANSWER:
1 Amplitude is used in measuring the maximum change in position of the vibration.
2 Wavelength is the distance over which the wave's shape repeats.
3 Frequency is the number of occurrences of a repeating event per unit time.
2.Give one example of a transverse wave and one example of a longitudinal wave.
ANSWER:
1 A transverse wave is a moving wave that consists of oscillations occurring perpendicular to the direction of energy transfer.
An example of transverse wave is shear wave.
2 A longitudinal wave has the same direction of vibration along its direction of travel,which means that the vibration of the medium (particle) is in the same direction or opposite direction as the motion of the wave.
An example of transverse wave is sound wave.
仅供参考,