- Joined
- Apr 29, 2011
- Messages
- 2,171
- Reaction score
- 863
This is a question from TPR. My question is: How do I know this is NOT a standing wave? Apparently it's a normal transverse wave.
"A physics student is doing a wave experiment with a 1m long cord stretched across the lab table. In the middle of the cord, a 1 cm section is painted red. A specially designed machine creates vibrations so that a sine wave will travel on the cord from the east side of the table to the west side of the table. The vibrations of the sine wave are parallel to the table and peak at the north side of the table and the south side of the table. Which of the following best describes the motion of the red spot?"
Answer: Spot vibrates between the north side and south side of the table.
One of the incorrect choices is "the spot remains in a fixed location" - which I think would indicate a standing wave.
"A physics student is doing a wave experiment with a 1m long cord stretched across the lab table. In the middle of the cord, a 1 cm section is painted red. A specially designed machine creates vibrations so that a sine wave will travel on the cord from the east side of the table to the west side of the table. The vibrations of the sine wave are parallel to the table and peak at the north side of the table and the south side of the table. Which of the following best describes the motion of the red spot?"
Answer: Spot vibrates between the north side and south side of the table.
One of the incorrect choices is "the spot remains in a fixed location" - which I think would indicate a standing wave.