Light & Sound Waves Review

Green plants look green because they

• transmit green light and absorb the rest
• reflect green wavelengths of the visible spectrum and absorb the rest
• absorb green wavelengths of the visible spectrum and reflect the rest
• reflect blue and yellow wavelengths of the visible spectrum and absorb the rest

Prisms produce the colors of the rainbow through

• reflection
• refraction
• diffraction
• interference

Sound waves move faster than light waves.

• True
• False

Which waves have the greatest amount of energy?

• gamma waves
• radio waves
• x-rays
• infrared light

The bouncing back of a light ray after hitting a surface is known as...

• diffraction
• refraction
• rebounding
• reflection

Higher frequency sound waves result in a lower pitch while a lower frequency waves result in a higher pitch.

• True
• False

The _________ of a wave is simply the length of one complete wave cycle.

• amplitude
• wavelength
• trough
• crest

Sound waves are created by vibrations.

• True
• False

The high points on waves are called...

• troughs
• crests
• zeniths
• wavelengths

What is the lowest part of a wave?

• trough
• crest
• point of origin
• compression point