Light Waves and Polarization Quiz

What is unpolarized light?

• Light vibrating in a single plane

• Light vibrating in multiple planes

• Light with no vibrations

• Light vibrating in a circular motion

What creates unpolarized light waves?

• Vibrating sound waves

• Vibrating electric charges

• Vibrating magnetic charges

• Vibrating mechanical forces

What is the main difference between a slinky wave and an electromagnetic wave?

• Slinky waves are electromagnetic

• Slinky waves vibrate in multiple planes

• Slinky waves vibrate in a single plane

• Slinky waves do not vibrate

Tinker is experimenting with light in his physics class. He shines unpolarized light through a Polaroid filter. How does the light emerge after passing through the filter?

• With double the intensity

• With vibrations in multiple planes

• With one-half the intensity and vibrations in a single plane

• With no change in intensity

Noah is using Polaroid sunglasses while driving on a sunny day. Why are Polaroid filters made of special material?

• To change the speed of light

• To block one of the two planes of vibration of an electromagnetic wave

• To increase the intensity of light

• To reflect light

Olivia is experimenting with light in her science class. She shines a beam of light through a Polaroid filter. What happens to the light?

• It becomes unpolarized

• It becomes polarized

• It becomes more intense

• It changes color

In the picket-fence analogy, what happens if the pickets of the second fence are aligned horizontally?

• Vertical vibrations pass through both fences

• Horizontal vibrations are blocked by the first fence

• Vertical vibrations are blocked by the second fence

• All vibrations pass through both fences

What is the purpose of rotating the second filter in a dual-filter demonstration?

• To change the color of the light

• To find the orientation where all light is blocked

• To increase the brightness of the light

• To magnify the object

What analogy is used to explain the dual-filter demonstration?

• A picket-fence analogy

• A mirror analogy

• A lens analogy

• A prism analogy

What is the result when the axes of two Polaroid filters are aligned parallel to each other?

• All light is blocked

• No light is blocked

• Only vertical light is blocked

• Only horizontal light is blocked