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18. Use the information below to answer the question:

A student performs an experiment by ringing a bell in the air and then in a pool and measuring the time it takes for a friend to hear the bell.

In the experiment, what is the independent variable?

(1 point)
Responses

The medium through which the sound travels (air or water).
The medium through which the sound travels (air or water).

The time it takes for the friend to hear the bell.
The time it takes for the friend to hear the bell.

The type of bell used in the experiment
The type of bell used in the experiment

The friend’s location relative to the bell.
The friend’s location relative to the bell.
Question 19
19. Use the information below to help answer the question.

Red tape can be used to repair a broken taillight on a car.

Why does red tape appear red when used to repair a broken taillight?

(1 point)
Responses

It transmits all colors of light.
It transmits all colors of light.

It reflects all colors of light and absorbs red.
It reflects all colors of light and absorbs red.

It transmits red light and absorbs other colors.
It transmits red light and absorbs other colors.

It absorbs all colors of light and reflects red.
It absorbs all colors of light and reflects red.
Question 20
20. Use the information below to help answer the question.

Red tape can be used to repair a broken taillight on a car.

Which statement best describes the behavior of light when it passes through the red tape?

(1 point)
Responses

All colors of light are transmitted equally.
All colors of light are transmitted equally.

All colors of light are reflected by the tape.
All colors of light are reflected by the tape.

Red light is transmitted, and other colors are absorbed.
Red light is transmitted, and other colors are absorbed.

Red light is absorbed, and other colors are reflected.
Red light is absorbed, and other colors are reflected.

All Answers 1

Answered by GPT-5 mini AI
18. The medium through which the sound travels (air or water).

19. It transmits red light and absorbs other colors.

20. Red light is transmitted, and other colors are absorbed.