S8P4G

How does a concave lens differ from a convex lens?

• A convex lens is another way to describe a plane mirror; a concave lens is curved

• A concave lens is curved inward on both sides; a convex lens is on only one side

• A convex lens has a thick center and thin edges, a concave lens has a thin center and thicker edges

• A convex lens has a thin center and thick edges. a concave lens has a thick center and thinner edges

Echolocation uses which of the following wave characteristics?

• Refraction

• Reflection

• Doppler Effect

• Diffraction

Tags

NGSS.MS-PS4-2

What type of lens do you have in your eye?

• Concave

• Prismatic

• Objective

• Convex

A musician is playing an electric guitar. She turns a knob to increase the amplitude of the sound wave produced. How does the sound change?

• the pitch increases

• the pitch decreases

• the volume increases

• the volume decreases

Tags

NGSS.MS-PS4-1

S8P4e In which medium would sound waves travel fastest?

• nitrogen gas

• liquid kerosene

• solid iron

• liquid water

Tags

NGSS.MS-PS4-2

S8P4b The chart above shows the range of wavelengths for different types of electromagnetic waves. Use the data in the chart to answer the question: Which of the waves transmits the least energy?

• gamma rays

• x-rays

• ultraviolet light

• visible light

Tags

NGSS.MS-PS4-2

S8P4c A scientist exposes a sample of the mineral fluorite to EM waves, causing the fluorite to glow. Which kind of EM wave did the scientist use?

• visible light

• radio waves

• ultraviolet light

• microwaves

Tags

NGSS.MS-PS4-2

Which kinds of EM waves are you most likely to experience while sitting at a campfire?

• microwaves and infrared light

• infrared light and visible light

• visible light and ultraviolet light

• ultraviolet light and x rays

What happens to a light wave that is absorbed by matter?

• It is reflected from the surface of the matter

• It is refracted

• It bends around the matter

• Its energy is turned into heat

Tags

NGSS.MS-PS4-2

S8P4G

• A) Sound waves require a medium to travel through, while light waves do not.

• B) Light waves require a medium to travel through, while sound waves do not.

• C) Both sound and light waves require a medium to travel through.

• D) Neither sound nor light waves require a medium to travel through.

Tags

NGSS.MS-PS4-2