Mechanical & Electromagnetic Waves Quiz

How do you get a reflected angle of 75°? In other words, what angle must light hit a mirror to achieve this?

• 55°
• 25°
• 75°
• 100°

What is the medium between the stoplight and the car?

• The decoder
• The air
• The destination
• The incident angle

The part of the eye that transforms the light you see into electricity that goes through the optic nerve is called the _____.

• Cornea
• Retina
• Iris
• Lens

Tags

NGSS.MS-LS1-2

What is one of the brain's job in both the auditory and optical system?

• To identify what the electrical energy from both systems mean.
• To make sure that the optical system works.
• To do nothing.
• To see if the optical system is more powerful.

Tags

NGSS.MS-LS1-8

The part of the ear that transforms sound energy into electrical energy that goes through the auditory nerve is called _______.

• Nerve fibers
• Eardrum
• Cochlea
• Anvil

What is one thing our brain does with the electricity that enters our brain through the optical nerve?

• It makes what we see into black and white.
• It cancels out the noise we hear.
• It adds detail to what we see by using our previous experiences.
• It creates an optical illusion by showing us something that isn't really there.

The cochlea is such an important part of our ear system, and it contains both hair cells and a fluid. What does this fluid do?

• It keeps our balance and tells our body directions like up and down.
• It keeps us hydrated.
• It turns sound energy into electricity.
• It does nothing.

What is the transparency of a lampshade like the one shown?

• Transparent

• Translucent

• Opaque

What is medium between the sun and the Earth?

• The moon

• The oceans

• Outer space

• Jupiter

As a car honking approaches, what happens to both frequency and amplitude?

• They increase.

• They decrease.

• They stay the same.

Tags

NGSS.MS-PS4-1