Waves

What is the frequency of an electromagnetic wave?

• The distance between corresponding points of two consecutive waves.

• The maximum distance the particles of a medium move when a wave passes through.

• How far a wave travels in a given amount of time.

• The number of wavelengths that pass a given point every second.

An electromagnetic wave consists of vibrating electric and magnetic fields.

• TRUE

• FALSE

Which of the following lists electromagnetic waves from lowest to highest energy?

• radio waves, microwaves, visible light, x-rays

• gamma rays, visible light, infrared rays, microwaves

• radio waves, ultraviolet light, infrared rays, x-rays

• x-rays, ultraviolet light, infrared rays, radio waves

Which of the following is NOT a source of electromagnetic waves on Earth?

• sun

• x-ray machines

• microwave ovens

• sound waves

Objects that produce light by incandescence include

• candles

• bonfires

• oil lamps

• all of these

Visible light includes all the wavelengths of light that the human eye can detect.

• TRUE

• FALSE

No animal can see infrared or ultraviolet light.

• TRUE

• FALSE

Fluorescence is a type of luminescence.

• True

• False

______ matter transmits light but scatters the light as it passes through.

• Translucent
• Transparent

• Opaque

• None of these

______ occurs when light bounces back from a surface that it cannot pass through.

• Reflection
• Absorption

• Transmission

• None of these