Sound and Light Waves

Why is lightning seen before thunder is heard?

• Light travels slower than sound

• Light travels faster than sound

• Lightning has more energy than thunder

• Lightning has less energy than thunder

When comparing the types of electromagnetic waves, which has the greatest amount of energy?

• Ultraviolet

• X-Rays

• Gamma Rays

• Visible Light

A student is listening to the radio and realizes the volume is to low. When she turns up the volume which part of the sound wave is she changing?

• Wavelength

• Frequency

• Period

• Amplitude

What does a sounds frequency determine?

• Amplitude

• Energy

• Intensity

• Pitch

The warmth you feel when you stand in front of a fire is thermal energy transferred to you by what type of electromagnetic waves?

• Infrared Waves

• Microwaves

• Ultraviolet Waves

• X-Rays

The color of light is determined by the

• Frequency of the wave

• Amplitude of the wave

• Pitch of the wave

• Wavelength of the wave

If the frequency of the wave increases the wavelength

• Increases

• Decreases

• Increases then decreases

• Remains unchanged

Electromagnetic waves are classified by their frequency. Gamma rays are

• Low frequency and short wavelength

• Low frequency and long wavelength

• High frequency and short wavelength

• High frequency and long wavelength

Which is true of infrared waves?

• they have shorter wavelengths than X-rays

• they give off more energy than gamma rays

• they have less energy than ultraviolet waves

• they have higher frequencies than visible light waves

The amplitude of light waves affects the lights

• color

• brightness

• speed

• hue