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JeopardyELECTROMAGNETICSPECTRUM

WAVES SOUND LIGHT MIX UP

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Final Jeopardy

Electromagnetic waves arranged in the order of increasing frequency is

called ________

The Electromagnetic Spectrum

Name the 2nd strongest type of electromagnetic wave

X Rays

The diagram to the left shows the electromagnetic spectrum and some of the different types of radiant energy. The component of the spectrum between ultraviolet light and infrared light interacts with the human eye allowing us to see. What is this component of the electromagnetic spectrum

called?

Visible light

Your Text Here

The sun emits all the different types of radiant energy

on the electromagnetic spectrum. The Earth does not

receive the full impact of all this radiation. The ozone

layer in the Earth’s atmosphere absorbs and helps to

block which type of radiant energy?

Ultraviolet light

Scientists have divided the energy in the electromagnetic

spectrum in different categories. Each category is

defined by a different

A. spectrum.

A. ray.

C. wavelength.

D. visibility.

Wavelength

Which graph shows the wave with the greatest amplitude?

A. Shows the wave with the greatest amplitude

Which of the above waves has the longest wavelength?A. Wave #1B. Wave #2C. Wave #3 D. Wave #4

C. Wave # 3

In __________ waves, matter in the medium moves forward and backward in the same

direction the wave travels.

Compressional Waves

__________ is a repeating disturbance that transfers energy

through matter or open space.

Wave

Describe compressional and transverse waves. Explain the

difference between them. You must include the parts of each type of wave in your explanation along with the definition of the wave.

Both types of waves are produced by something vibrating. Compressional waves move back and forth along the same direction the wave is moving. Transverse waves move by causing matter to move at right angles to the

direction the wave is moving.

Sound reaches our ears because sound makes air particles

A. heat up. B. cool down. C. slow down. D. vibrate.

vibrate

Sound is a type of mechanical energy that is transmitted in the form of

A. waves B. lightC. heat

D. electrons

A. waves

Through which medium will sound travel the fastest?

Solid

Sound waves are classified as _________ waves

Compressional Waves

Describe the functions of the 3 parts of the ear.

Outer ear – collects sound waves

Middle ear – amplifies or boosts the sounds we hear.

Inner ear – sends nerve pulses to the brain that we interpret as sound.

A student is investigating how light behaves when it strikes different surfaces. She has a

frosted window glass pane, a clear window glass pane, a mirror, and a piece of cardboard. Which

of these objects will scatter the most light? Explain your answer.

The frosted window glass, because it is translucent

The bending of a wave when it moves from one material to another

is known as ____

Refraction

When light hits an object, the rays can pass through it, bounce off it, or be absorbed by it. Light rays that bounce back are _________

reflected

Why didn’t the light travel in a straight line? Explain what causes this.

The light did not travel in a straight line because of refraction. The light

slowed down as it went from one medium to the next.

Describe the process that occurs when light waves enter your eye and produce a signal in the optic nerve.

Light waves are focused by the lens in your eye on the retina. The light is

then sent as a signal to the brain through optic nerve, which causes

images to be seen.

What happens to the path of a light ray as it passes from air into water at

an angle?

A. Its path widens. B. Its path bends. C. Its path becomes shorter. D. Its path continues in a straight line

The light refracts or bends.

What type of waves do not require matter to carry energy?

Electromagnetic Waves

__________ is the distance from the top of one crest of a transverse wave

to the top of the next crest in that wave.

Wavelength

Which of the following characteristics of a wave determine where it will fall within the wave spectrum (shown above)?

AMPLITUDEHOW IT IS USEDWAVELENGTHWAVE SPEED

WAVELENGTH

Name 4 parts of the eye and describe their functions.

Cornea – protects the eye; it is also where light entering the eye gets refracted first.

Lens – further refracts light that enters the eye and focuses images on the retina

Retina – The retina is composed of tiny light sensitive nerves that transfer the energy of the

light waves to nerve impulses.

Optic nerve – the nerve impulses get sent to the brain through the optic nerve which the

brain interprets as sight.

Final JeopardyName the different types of electromagnetic waves from longest to shortest wavelength. Give an example of the usage of each type of wave.

Final Jeopardy AnswerRadio waves – radio & tv, satellites, microwavesInfrared – used to detect or produce heatVisible light – used to seeU V rays – helps the body produce vitamin B;used to treat skin conditionsX-Rays – used to photograph bones Gamma Rays – used to kill bacteria, radiation therapy