Electromagnetic waves are:

• Transverse waves
• Longitudinal waves

Which of these electromagnetic waves has the shortest wavelength?

• Infrared Waves
• Light waves
• Radio waves
• X-rays

Which of the following waves are different from the others?

• Gamma waves 
• Radio waves
• Sound waves
• Light waves

The main difference between a radio wave and a light wave is its:

• Speed
• Wavelength

The source of all electromagnetic waves is:

• Magnetic fields
• Heat
• Vibrating charges
• Fields

Compared to its speed in air, the speed of light in water is:

• Faster
• The same
• Slower

Glass is transparent to visible light, but not to:

• Ultraviolet
• Infrared
• Both A and B

The primary purpose of polarized sunglasses is to:

• Block ultraviolet rays
• Block infrared rays
• To block glare from reflections
• To look cool

Light does not pass through which kind of materials?

• Transparent
• Opaque

Compared to the speed of light, sound travels:

• Faster
• The same speed
• Slower