Electromagnet Spectrum

Question 1

light is a form of _________.

Answer 1

energy or electromagnet radiation

Question 2

the higher the waves frequency on the electromagnet spectrum, the ______ energy it carries.

Answer 2

more

Question 3

in addition to infrared radiation, visible light, and gamma rays, what other waves does the electromagnet spectrum include?

Answer 3

xrays, microwaves, radiowaves, and Ultra Violet waves

Question 4

when can a light be produced?

Answer 4

when photons interact with matter

Question 5

what type of light source is a light bulb with filament?

Answer 5

incandescent light source

Question 6

what substances absorb energy from an outside source and then emit some of it as visible light even after the source is removed?

Answer 6

egg shells, ivory, and things that glow in the dark

Question 7

what does laser stand for?

Answer 7

light amplification by stimulated emission of radiation

Question 8

describe the electromagnet spectrum?

Answer 8

a system of classifying waves based on there properties of amplitude, frequency, and wavelength

Question 9

what are the differences between a incandescent, flourescent and laser light?

Answer 9

an incandescent light is a light in which it has filiment through which elcectricity flows through. a floureescent light is when the electric current excites the mercury causing a light to for, and a laser light makes the light only one color and it contains only one wavelength.the laser light is also coherent, meaning the light waves are perfectly parellel and there crests and troughs line up leaving a straight line.

Question 10

how can atoms be made to emit light?

Answer 10

when the electron in the atom absorbs a photon it gains energy. when the electron returns to its normal state, it lets go of a proton and loses energy. that energy is in the form of light

Question 11

what type of electromagnet radiation caries the most energy

Answer 11

gamma rays

Question 12

Which colors of visible light have the highest frequency?

Answer 12

VIOLET

Question 13

What is white light?

What is diffraction?

Answer 13

WHITE LIGHT IS ALL THE FREQUENCIES OF ROYGBIV (red, orange, yellow, grren, blue, ___, and vioet)TOGETHER. DIFFRACTION BREAKS UP ROYGBIV INTO ITS FREQUENCIES

Question 14

If I were planning a trip to the zoo and was going to be walking around in the sun all day… should I wear a black or white t-shirt? WHY? ?

Answer 14

WHITE SHIRT – IT REFLECTS ALL FREQUENCIES OF LIGHT. (BLACK – ABSORBS ALL FREQUENCIES OF LIGHT)

Question 15

Apples appear red because they ________ red light frequencies??

Answer 15

REFLECTS

Question 16

What property of a wave accounts for the colors we see?

Answer 16

THE WAVES FREQUENCY

Question 17

Which part of the electromagnetic spectrum has the highest frequency?

Answer 17

GAMMA RAYS

Question 18

Which part of the electromagnetic spectrum has the longest wavelengths? How large can they be?

Answer 18

RADIO – AS LONG AS A FOOTBALL FIELD

Question 19

Cell phones use what type of waves from the EM spectrum?

Answer 19

MICROWAVES

Question 20

Some animals can detect their prey by using thermal radiation or body heat? Which part of the EM spectrum is this?

Answer 20

INFRARED

Question 21

List the EM spectrum in order starting with the highest frequencies moving to the lowest.

Answer 21

GAMMA, X-RAY, ULTRAVIOLET, VISUAL LIGHT, INFRARED LIGHT, MICROWAVES, RADIO WAVES

Question 22

What do ALL waves transfer?

Answer 22

• ENERGY

Question 23

The amplitude of a wave shows how much ________ a wave is carrying?

Answer 23

ENERGY

Question 24

What is the property that is the highest part of a wave?

What is the property that is the lowest part of a wave?

Answer 24

CREST, TROUGH

Question 25

What is the relationship between wavelength and frequency?

Answer 25

LONGER WAVELENGTH = LOWER FREQUENCY, SHORTER WAVELENGTH = HIGHER FREQUENCY

Question 26

If you found an unknown wave how could you identify what kind of wave it is? Name 3 things you could do!

Answer 26

MEASURE WAVELENGTH, MEASURE FREQUENCY, MEASURE AMPLITUDE

Question 27

What does the word Perpendicular Mean and how does it relate to waves?

Answer 27

CREATES A RIGHT ANGLE OR 90 DEGREE ANGLE – THE WAVE MOVES IN A PERPENDICULAR MOTION OF THE DISTURBANCE. (TRANSVERSE)

Question 28

What does the word parallel mean and how does that relate to waves?

Answer 28

TWO LINES THAT WILL NEVER CROSS – THE WAVE MOVES IN A PARALLEL MOTION OF THE DISTURBANCE. (LONGITUDINAL)

Question 29

Snapping a rope is an example of what time of wave??

Answer 29

TRANSVERSE

Question 30

A slinky is an example of what type of wave??

Answer 30

• LONGITUDINAL

Question 31

What type of waves can travel through empty space? EXPLAIN!

Answer 31

LIGHT WAVES – SUNLIGHT CAN TRAVEL THROUGH THE EMPTY SPACE OF THE UNIVERSE AND MAKE ITS WAY TO EARTH

Question 32

what is gas discharge light?

Answer 32

when an electric current is sent through certain gases, electrons in the gas are now excited. when the electrons return to an unexcited state, they send out light.