Unit 7 Test Corrections

Front

What type of wave has the most energy?

Back

Electromagnetic waves generally have more energy than mechanical waves, with gamma rays having the highest energy.

Front

Which color of visible light has the highest frequency?

Back

Violet light has the highest frequency in the visible spectrum.

Front

What is represented by the letter J in wave diagrams?

Back

Wavelength.

Front

Which of the following is NOT a mechanical wave?

Back

Light waves are not mechanical waves; they are electromagnetic waves.

Front

What property of a sound wave affects its volume?

Back

Amplitude affects the volume (loud or soft) of a sound.

Front

Define wavelength in the context of waves.

Back

Wavelength is the distance between successive crests (or troughs) of a wave.

Front

What are mechanical waves?

Back

Mechanical waves require a medium (solid, liquid, or gas) to travel through.

Front

What is the relationship between frequency and energy in waves?

Back

Higher frequency waves carry more energy.

Front

What is the speed of light in a vacuum?

Back

The speed of light in a vacuum is approximately 299,792 kilometers per second (or about 186,282 miles per second).

Front

What is amplitude in the context of sound waves?

Back

Amplitude is the maximum displacement of points on a wave, which determines the loudness of the sound.