Question

first activity: amplitude

1. hit the green button once to generate a pulse. what happens to the pulse when it reaches the fixed end?
2. to stop the wave but keep all settings the same, click restart.
3. which slider will adjust the starting height of the wave?
4. what is the maximum height possible?
5. which slider makes the height of the wave decrease as it travels?

second activity: wavelength and amplitude

• set your controls to oscillate and no end
• select slow motion
• set amplitude at 0.50 cm and frequency at 1.00 hz.
• use the pause button to stop the wave for easier measurement.

1. move the horizontal ruler to measure the wavelength. remember: crest to crest or trough to trough. such as in the image below. each tiny mark on the ruler equates to 0.2 cm

wavelength #1 = cm

Explanation:

Step1: Analyze pulse - fixed end interaction

When a pulse reaches a fixed end, it reflects back and is inverted. But the provided answer "bounces back" is a simplified non - inverted description which might be due to the context of the activity focusing on basic observation.

Step2: Identify wave height adjustment slider

The amplitude slider adjusts the starting height of the wave. The provided answer "damping" is incorrect. Damping affects the decay of the wave as it travels, not the starting height.

Step3: Determine maximum height

Without further information about the system's settings range, we can't verify the "3.2" answer. It depends on the specific setup of the wave - generating tool.

Step4: Identify wave decay slider

The damping slider makes the height of the wave decrease as it travels, which is consistent with the provided answer.

Step5: Measure wavelength

Count the number of tiny marks between two crests or two troughs. Each mark is 0.2 cm. If the answer is "3" cm, it means there are 15 tiny marks between the two points of measurement.

Answer:

1. Bounces back (simplified observation of reflection at fixed end)
2. Amplitude (the correct slider for starting wave height, not damping)
3. Can't be verified without more context (3.2 might be correct depending on setup)
4. Damping (correct for wave height decrease during travel)
5. 3 cm (wavelength measurement based on ruler marks if 15 marks between relevant points)