Show Wavelength and Amplitude - 4th Grade Science
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Which measurement is vertical on a wave model: wavelength or amplitude?
Which measurement is vertical on a wave model: wavelength or amplitude?
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Amplitude is the vertical measurement. Amplitude measures up-down displacement from rest.
Amplitude is the vertical measurement. Amplitude measures up-down displacement from rest.
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If the wave height is $10$ cm, what is the amplitude?
If the wave height is $10$ cm, what is the amplitude?
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$5$ cm. Amplitude = wave height $\div 2 = 10 \div 2$.
$5$ cm. Amplitude = wave height $\div 2 = 10 \div 2$.
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Which points do you measure between to find wavelength on a transverse wave?
Which points do you measure between to find wavelength on a transverse wave?
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Crest to crest (or trough to trough) on consecutive waves. Matching points ensure you measure exactly one complete wave.
Crest to crest (or trough to trough) on consecutive waves. Matching points ensure you measure exactly one complete wave.
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What is amplitude in a wave model?
What is amplitude in a wave model?
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Maximum distance from the rest position to a crest or trough. Amplitude measures the wave's strength or energy.
Maximum distance from the rest position to a crest or trough. Amplitude measures the wave's strength or energy.
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What is a crest on a transverse wave model?
What is a crest on a transverse wave model?
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The highest point of the wave above the rest position. Crests represent maximum positive displacement.
The highest point of the wave above the rest position. Crests represent maximum positive displacement.
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What is wavelength in a wave model?
What is wavelength in a wave model?
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Distance between matching points on consecutive waves (crest to crest). Wavelength measures the repeating pattern's length.
Distance between matching points on consecutive waves (crest to crest). Wavelength measures the repeating pattern's length.
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Identify the correct definition: wavelength is measured parallel or perpendicular to travel?
Identify the correct definition: wavelength is measured parallel or perpendicular to travel?
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Parallel to the direction the wave travels (along the wave). Wavelength follows the wave's propagation direction.
Parallel to the direction the wave travels (along the wave). Wavelength follows the wave's propagation direction.
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What are two correct ways to measure one wavelength on the same wave model?
What are two correct ways to measure one wavelength on the same wave model?
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Crest to crest or trough to trough (consecutive matching points). Both methods span one complete wave cycle.
Crest to crest or trough to trough (consecutive matching points). Both methods span one complete wave cycle.
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What is the amplitude if the rest position is at $0$ cm and a crest is at $4$ cm?
What is the amplitude if the rest position is at $0$ cm and a crest is at $4$ cm?
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$4$ cm. Distance from rest ($0$ cm) to peak ($4$ cm) is $4$ cm.
$4$ cm. Distance from rest ($0$ cm) to peak ($4$ cm) is $4$ cm.
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What is the amplitude if the rest position is at $0$ cm and a trough is at $-3$ cm?
What is the amplitude if the rest position is at $0$ cm and a trough is at $-3$ cm?
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$3$ cm. Distance from rest ($0$ cm) to trough ($-3$ cm) is $3$ cm.
$3$ cm. Distance from rest ($0$ cm) to trough ($-3$ cm) is $3$ cm.
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Which two matching points can you measure between to find wavelength?
Which two matching points can you measure between to find wavelength?
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Crest to crest (or trough to trough). Matching points ensure you measure one complete wave cycle.
Crest to crest (or trough to trough). Matching points ensure you measure one complete wave cycle.
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Identify the amplitude if the rest position is at $0\text{ cm}$ and a trough is at $-5\text{ cm}$.
Identify the amplitude if the rest position is at $0\text{ cm}$ and a trough is at $-5\text{ cm}$.
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$5\text{ cm}$. Amplitude is the absolute distance from rest to trough.
$5\text{ cm}$. Amplitude is the absolute distance from rest to trough.
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Find and correct the mistake: 'Amplitude is measured from crest to trough.'
Find and correct the mistake: 'Amplitude is measured from crest to trough.'
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Correct: Amplitude is from rest position to crest or trough. Crest-to-trough is wave height, not amplitude.
Correct: Amplitude is from rest position to crest or trough. Crest-to-trough is wave height, not amplitude.
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Which option best shows wavelength on a diagram: vertical arrow or horizontal arrow?
Which option best shows wavelength on a diagram: vertical arrow or horizontal arrow?
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Horizontal arrow between matching points (for example, crest to crest). Wavelength spans horizontally between wave repeats.
Horizontal arrow between matching points (for example, crest to crest). Wavelength spans horizontally between wave repeats.
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What does a larger amplitude show about how the wave moves?
What does a larger amplitude show about how the wave moves?
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The wave has taller crests and deeper troughs (greater displacement). Larger amplitude means more energy and movement.
The wave has taller crests and deeper troughs (greater displacement). Larger amplitude means more energy and movement.
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Find the amplitude if the distance from the rest position to a crest is $3\text{ cm}$.
Find the amplitude if the distance from the rest position to a crest is $3\text{ cm}$.
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$3\text{ cm}$. Distance from rest to peak equals amplitude.
$3\text{ cm}$. Distance from rest to peak equals amplitude.
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Choose the correct wavelength measure: crest-to-trough or crest-to-crest?
Choose the correct wavelength measure: crest-to-trough or crest-to-crest?
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Crest-to-crest. Wavelength must be between matching points, not opposites.
Crest-to-crest. Wavelength must be between matching points, not opposites.
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Identify the wavelength if crest-to-crest distance is $12\text{ cm}$.
Identify the wavelength if crest-to-crest distance is $12\text{ cm}$.
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$12\text{ cm}$. Crest-to-crest distance equals one wavelength.
$12\text{ cm}$. Crest-to-crest distance equals one wavelength.
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Find the wave height (crest-to-trough) if the amplitude is $4\text{ cm}$.
Find the wave height (crest-to-trough) if the amplitude is $4\text{ cm}$.
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$8\text{ cm}$. Wave height equals twice the amplitude: $2 \times 4 = 8$.
$8\text{ cm}$. Wave height equals twice the amplitude: $2 \times 4 = 8$.
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Identify the correct formula for amplitude using wave height (crest-to-trough).
Identify the correct formula for amplitude using wave height (crest-to-trough).
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Amplitude $= \frac{\text{wave height}}{2}$. Wave height is twice the amplitude.
Amplitude $= \frac{\text{wave height}}{2}$. Wave height is twice the amplitude.
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