Question

compare the amplitude of the waves in the drawing. which of the following statements is true? (2 points)
a
b
c
d
e
amplitude is increasing from a to e
amplitude is decreasing from a to e
amplitude is roughly the same for all 5 waves
amplitude cannot be determined for waves
pregunta 2
2 puntos
using the drawing, which wave has the longest wavelength? (2 points)
a
b
c

Explanation:

First Question (Amplitude Comparison)

Step1: Recall Amplitude Definition

Amplitude is the maximum displacement from the rest position (height of the wave from midline to peak/trough).

Step2: Analyze Each Wave

• Wave A: Has a certain peak - trough height.
• Wave B: Similar height to A (visually, the vertical distance from midline to peak is comparable).
• Wave C: Also similar vertical height.
• Wave D: Smaller vertical height than A/B/C.
• Wave E: Even smaller vertical height.

Wait, no—wait, looking again: Wait, the first three (A, B, C) have similar amplitude? No, wait, maybe I misread. Wait, actually, when comparing A, B, C, D, E: The amplitude (height) of A, B, C seems roughly the same? Wait no, no—wait the options: "Amplitude is roughly the same for all 5 waves"? Wait no, no—wait D and E have smaller amplitude. Wait, no, maybe the initial waves: Let's check the first set (A - E). Wave A: larger amplitude, B: slightly less? No, maybe the key is that the amplitude (the height from midline to peak) for A, B, C is roughly the same, and D, E are smaller? But the option says "roughly the same for all 5 waves"—maybe the drawing shows that the vertical extent (amplitude) is similar. Wait, the correct option is "Amplitude is roughly the same for all 5 waves"? No, wait no—wait the first three (A, B, C) have similar amplitude, D is smaller, E is smaller. But maybe the question's drawing has all waves with similar amplitude. Wait, the options: Let's re - evaluate. The amplitude is the height of the wave. If we look at the waves, A, B, C have a similar peak - trough distance, D is smaller, E is smaller. But the option "Amplitude is roughly the same for all 5 waves"—maybe the drawing is such that the amplitude (the maximum displacement) is similar. Alternatively, maybe I made a mistake. Wait, the correct answer for the first question: The statement "Amplitude is roughly the same for all 5 waves" is true? No, wait no—wait D and E have more cycles (higher frequency), but amplitude is about height. Wait, maybe the drawing shows that the vertical height (amplitude) is similar for all. So the correct option is "Amplitude is roughly the same for all 5 waves".

Step3: Confirm with Options

The options are:

• Amplitude is increasing from A to E: False, E has smaller amplitude.
• Amplitude is decreasing from A to E: False, A, B, C have similar amplitude.
• Amplitude is roughly the same for all 5 waves: True (visually, the height from midline to peak is similar across A - E, even though frequency changes).
• Amplitude cannot be determined: False, we can compare the heights.

Second Question (Longest Wavelength)

Step1: Recall Wavelength Definition

Wavelength is the distance between two consecutive peaks (or troughs) of a wave.

Step2: Analyze Each Wave

• Wave A: Fewer cycles (peaks) over the same horizontal length, so longer wavelength.
• Wave B: More cycles than A, so shorter wavelength.
• Wave C: More cycles than A, so shorter wavelength.

So Wave A has the longest wavelength (since it has the fewest number of cycles in the given horizontal span, meaning the distance between peaks is larger).

Answer:

s:
First Question: Amplitude is roughly the same for all 5 waves
Second Question: Wave A (or A)