Electromagnetic Waves & Behaviors

Electromagnetic Spectrum

100

In any order, list the 7 electromagnetic waves

Radio, Micro, Infrared, Visible Light, Ultraviolet, X-Ray, Gamma

200

List the 3 waves that are dangerous (also called ionizing) because they have extremely high frequency and because of that, can rupture cells or even atoms.

Gamma Ray, X-rays, and some forms of UV light.

300

True or False:

Gamma rays travel faster from point A to point B than visible light waves because Gamma rays have more energy than visible light.

False, ALL electromagnetic waves travel the same speed, hence the "speed of light" seeing as they are all considered light. 

Gamma has more frequent waves, therefore it DOES have more energy, but does not move faster from one place to another

400

List the colors of the rainbow in order from SHORTEST WAVELENGTH to LONGEST WAVELENGTH.

500

Draw and label the electromagnetic spectrum as a single wave from small wavelengths to large wavelengths

You're drawing should include: 

-Short to long wavelengths drawn from left to right

-All 7 labels for the electromagnetic spectrum IN THE CORRECT ORDER based on your wave drawing

-The same amplitude for the entire wave

Mirrors and Law of Reflection

100

If you look at a spoon at arms length, what would the reflection of yourself look like on the inside of the spoon? (one description needed)

1) Inverted (upside down) image, skinnier/thinner

200

Harley learns that a campfire can be started by using a concave mirror and sunlight. The diagram represents three parallel rays of sunlight hitting a concave mirror and light ray 1 being reflected.

Describe the paths of light rays 2 and 3 as they would be reflected by the mirror.

2 would reflect straight back

3 would reflect TOWARDS the middle, meeting at a focal point with rays 1 and 2. 

300

Draw a concave and convex mirror and label each. 

Also, draw how light waves change as they hit each mirror. 

Hint: (Draw 3 light waves that hit the mirror, bounce off, and show which way each wave should travel)

400

Using the following diagram, find the angle of incidence and the angle of reflection:

Both are 80^o

500

Draw and label a diagram that shows the law of reflection.

Include in your drawing and labels:

Mirror, Normal, Incident Ray, Reflected Ray, Angle of Incident (i), Angle of Reflection (r)

Lenses and Refraction

100

A Lens is a ____________, or see through object, that has at least one _________ side.

transparent, curved

200

What is the area called where all beams of light meet after passing through a convex lens?

the Focal Point

300

Tommy is wanting to start a campfire using light from the sun.

1) What type of mirror could he use to do this?

2) What type of lens could he use to do this? 

1) Concave Mirror

2) Convex Lens

400

If you look through a magnifying glass at an object that is really far away, the image you see will be 1) ______ and will look 2)_______ than the actual object.

Word bank: Inverted, upright, larger, smaller, the same

1) Inverted

2) smaller

500

Draw a concave and convex lens and label each. 

Also, draw how light waves change as they pass through each lens. 

Hint: (Draw 3 parallel light waves that hit the lens, pass through it, and show which way each wave should travel)

Wave Behaviors & Light

100

Explain what makes Bow Fishing so hard, in terms of light.

Since light enters a new medium (air to water, hits the fish and reflects back out to air), the light curves, or bends. This makes the fish appear in a different spot when looking at it from outside the water, in relation to where it REALLY IS in the water.

200

Which wave behavior describes what happens when light is shown through a prism?

Refraction (light "bends" into the different wavelengths of color)

300

If ALL light waves are reflected off a medium or object, then what color will be perceived?

White

400

Describe what happens when white light hits this shirt:

All the colors in white light get absorbed EXCEPT the BLUE wavelength, it REFLECTS off the shirt back to our eyes.

500

List all 5 Wave Behaviors and draw an image of each.