Light and sound waves quick check science 8B

Answer 1

1) What is a wave?
A wave is a disturbance that transfers energy through a medium or empty space. It consists of alternating high and low points, known as crests and troughs, that move through the medium.

2) How are light and sound waves different?
Light waves are electromagnetic waves that can travel through empty space, while sound waves are mechanical waves that require a medium, such as air or water, to travel through.

3) How are light and sound waves similar?
Both light and sound waves are forms of energy that travel in wave-like patterns. They can be reflected, refracted, and diffracted. They also both have properties such as frequency, wavelength, and amplitude.

4) How is the energy of a wave related to its amplitude?
The amplitude of a wave determines the amount of energy it carries. A wave with a greater amplitude has more energy than a wave with a smaller amplitude.

5) Can light waves travel through a vacuum?
Yes, light waves can travel through a vacuum because they are electromagnetic waves that do not require a medium to propagate.