Question

match the words to the picture. each word is used only once.
select one
a. amplitude
b. crest
c. electromagnetic spectrum
d. electromagnetic wave
e. energy
f. frequency
g. medium
h. transverse wave
i. trough
j. wave
select one

Explanation:

The picture shows a wave with different wavelengths (longer and shorter) and the concept related to how often the wave repeats (frequency) or the type of wave. But looking at the options, if we consider the wave's properties, "frequency" (F) is about the number of cycles per unit time, and the wave with more cycles (shorter wavelength) has higher frequency. Alternatively, if the picture is a transverse wave (H), but the options include H. However, the dropdown is for matching. Wait, the problem is to match words to the picture. The picture has a wave with crests, troughs, and different wavelengths. But the key here: the term "frequency" (F) is related to how many waves pass a point in time, and the picture shows waves with different frequencies (longer wavelength means lower frequency, shorter higher). Alternatively, "transverse wave" (H) is a wave where oscillation is perpendicular to direction, which this wave (with crests and troughs) is. But let's check the options. Wait, the user's question is to match, but maybe the correct answer is F (frequency) or H (transverse wave). Wait, the picture shows a wave with crests and troughs, so it's a transverse wave (H) or frequency (F). Wait, no, the wave's shape: transverse wave (H) is correct for a wave with crests and troughs (oscillation perpendicular to direction). But let's re-examine. The options: H is transverse wave, which this is. But maybe the answer is F (frequency) because the picture shows waves with different frequencies (longer and shorter wavelengths). Wait, the problem says "each word is used only once". But the user's question is to choose the correct option. Wait, maybe the correct answer is F. Frequency, as the number of waves (cycles) per unit length (or time) – the more waves, the higher frequency. So the correct option is F. frequency.

Answer:

F. frequency