BT Pg. 337-356 Flashcards

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1
Q

Electromagnetic waves with the longest wavelengths and lowest frequencies; carry signals to your radio, television and cell phones

A

Radio Waves

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2
Q

these waves heat the food we eat and have shorter wavelengths than radio waves; also used for radar images like the Doppler radar used in weather forecasts

A

Microwaves

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3
Q

3rd longest wave, can be felt as heat. Your television remote control also transmits this type of wave

A

Infrared Waves

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4
Q

the only type of electromagnetic waves that we can see; seen as the colors of the rainbow

A

Visible Light

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5
Q

a type of energy that comes to Earth from the Sun, can damage skin and cause cancer, and is mostly absorbed by the ozone layer

A

Ultraviolet Radiation

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6
Q

waves that are so powerful they can pass easily through the skin and allow doctors to look at our bones

A

X-Rays

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7
Q

Electromagnetic waves with the shortest wavelengths and highest frequencies; generated by radioactive atoms in nuclear explosions. Some doctors use these waves to kill cancer cells.

A

Gamma Rays

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8
Q

the arrangement of the different kinds of electromagnetic radiation according to their wavelengths and frequencies

A

Electromagnetic Spectrum

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9
Q

How we perceive light of a certain wavelength or frequency

A

Color

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10
Q

a mixture of all the colors of LIGHT in the rainbow

A

White Light

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11
Q

a transparent or translucent object that splits light by frequencies, often a triangular in shape

A

Prism

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12
Q

what happens when light waves bounce off an object

A

Reflection

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13
Q

The organ of the body that detects light radiation

A

Eye

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14
Q

An especially sharply focused beam of light

A

Laser

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15
Q

Black objects ___________ all colors of light

A

Absorb

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16
Q

A prism is an object that bend light

A

Refraction

17
Q

This attribute of light is determined by the wavelength of the light

A

Color

18
Q

Visible light is just one segment of the ______________ spectrum.

A

Electromagnetic

19
Q

the shortest wavelength is perceived as this color

A

Violet Light

20
Q

Packets of energy in light

A

Photons

21
Q

Jana wants to mix ALL the colors of paint together. Will she get white paint or black?

A

Black

22
Q

We see rainbows during a storm because each _____ acts like a prism.

A

Raindrop

23
Q

Light does not need a ___________ to travel.

A

Medium

24
Q

Not allowing the passage of light, not transparent;

A

Opaque

25
Q

Quality of being able to be seen through, clear

A

Transparent

26
Q

permitting some light to pass through but giving an unclear image

A

Translucent

27
Q

A dark area created by an object that is opaque

A

Shadow

28
Q

The process in which light travels through a medium without being absorbed or scattered.

A

Transmission

29
Q

Light sensitive cells used in NON-COLOR vision and low light situations

A

Rod Cells

30
Q

Light sensitive cells used for COLOR VISION and fine detail

A

Cone Cells

31
Q

Carries electrical impulses from the eye to the brain

A

Optic Nerve