Directions: Use the information provided and your knowledge of Physical Science to answer the following questions. Show all work where necessary.
Directions: Use the information provided and your knowledge of Physical Science to answer the following questions. Show all work where necessary.
Students tie one end of a rope to a table and move the other end up and down to create waves. A paper clip rests on the rope. When students make small waves, the paper clip barely moves. When they make larger waves, the paper clip moves much farther along the rope.
Students ask:
How do wave patterns affect how objects move?
This investigation helps students model how waves have patterns (amplitude and wavelength) and how waves can cause objects to move.
Source: https://ar.inspiredpencil.com/pictures-2023/transverse-wave-rope
Waves are patterns of motion that travel through materials like ropes, water, or air. When you shake a rope, you are not moving the rope itself down the line. Instead, you are creating a wave pattern that moves along the rope.
Two important properties of waves are amplitude and wavelength. Amplitude is how tall the wave is, measured from the middle position to the top of the wave. A larger amplitude means a bigger movement. Wavelength is the distance between one wave peak and the next. It describes how spread out the wave pattern is.
Waves can cause objects to move without carrying the object with them. When a wave travels along a rope, energy moves through the rope. Objects resting on the rope, like a paper clip, can move because the wave transfers energy to them.
In this investigation, students change how strongly they move the rope. This changes the amplitude of the wave. By measuring how far the paper clip moves, students can see how wave patterns affect motion. This helps students model how waves behave and how waves can cause objects to move.
Source:
https://www.edplace.com/worksheet_info/science/keystage3/year7/topic/1290/13103/define-and-calculate-amplitude-frequency
Trial | Wave Amplitude (cm) | Distance Paper Clip Moved (cm) |
|---|---|---|
1 | 2 | 3 |
2 | 4 | 6 |
3 | 6 | 9 |
4 | 8 | 13 |
Trial | Wavelength (cm) | Number of Waves on Rope |
|---|---|---|
1 | 20 | 3 |
2 | 15 | 4 |
3 | 10 | 6 |
Look at Table 1. How does the distance the paper clip moves change as wave amplitude increases?
Which wave amplitude causes the paper clip to move the farthest distance?
Using Figure 1, describe the pattern between wave amplitude and paper clip movement.
Look at Table 2. How does the number of waves on the rope change as wavelength becomes shorter?
Which statement is best supported by the wavelength data?
How do the rope wave patterns show that waves have amplitude and wavelength and can cause objects to move?
Claim:
Evidence:
Reasoning: