Physical Science Chapter 7

Front 1

Which of the following is luminous?

Back 1

Sun

Front 2

A source of light given off as a high temperature is said to be

Back 2

Incandescent

Front 3

An idealized material that absorbs and perfectly emits electromagnetic radiation is a

Back 3

Blackbody

Front 4

Electromagnetic radiation is given off from matter at any temperature. This radiation is called

Back 4

Blackbody radiation

Front 5

Light interacts with matter by which process?

Back 5

Absorption, Reflection , Transmission

Front 6

Materials that do not allow the transmission of any light are called

Back 6

Opaque

Front 7

Light is said to travel in straight line paths, as light rays, until it interacts with matter. A line representing the original Ray before it interacts with matter is called a

Back 7

Incident ray

Front 8

The image you see in a mirror is

Back 8

Virtual image

Front 9

Refraction of light happens when light undergoes

Back 9

A change of speed between two transparent materials

Front 10

The ratio of the speed of light in a vacuum to the speed of light in a transparent material I'd called the

Back 10

Index of refraction

Front 11

The part of the electromagnetic spectrum that out eyes can detect is

Back 11

Visible

Front 12

The component colors of Sun light were first studied by

Back 12

Newton

Front 13

The color order of longer wavelength to smaller wavelength waves in the visible region is

Back 13

Red orange yellow green blue violet

Front 14

The separation of white light into its component colors is

Back 14

Dispersion

Front 15

Polarization of light offs best explained by considering Light to be

Back 15

Vibrating waves in one plane

Front 16

Light in one plane is transmitted and light in all other planes is absorbed. This is

Back 16

Selective absorption

Front 17

The photoelectric effect is best explained by considering light to be

Back 17

Moving particles

Front 18

The concept that vibrating molecules emit light in discrete amounts of energy, called quanta, was proposed by

Back 18

Planck

Front 19

The photoelectric effect was explained, using Plancks work, by

Back 19

Einstein

Front 20

Today light is considered to be packets of energy with a frequency related to its energy. These packets are called

Back 20

Photons

Front 21

Fiber optics transmits information using

Back 21

Light

Front 22

A luminous object

Back 22

Produces light of its own by any method

Front 23

An object is hot enough to emit a dull red glow. When this object is heated even more, it will emit

Back 23

Shorter wavelength, higher frequency radiation

Front 24

The difference in light emitted from a candle an incandescent lightbulb and Sun is basically due to differences in

Back 24

Temperatures

Front 25

You are able to see in shaded areas, such as under a tree, because light has undergone

Back 25

Diffuse reflection

Front 26

An image that is not produced by light rays coming from the image but is the result of your brains interpretation of light rays it's called an

Back 26

Virtual image

Front 27

Any part of the electromagnetic spectrum including the colors of visible light can be measured in units of

Back 27

Wavelength, frequency, energy

Front 28

A prism seperates the colors of sunlight into a spectrum because

Back 28

Each wavelength of lights had its own index of refraction

Front 29

Which of the following can only be explained by a wave model of light

Back 29

Interference

Front 30

The polarization behavior of light is best explained by considering light to be

Back 30

Transverse waves

Front 31

Max Planck made the revolutionary discovery that the energy of vibrating molecules involved in blackbody radiation existed only in

Back 31

Multiples of certain fixed amounts

Front 32

Today light is considered to be

Back 32

A small scale phenomenon without a sharp distinction between particle and wave properties

Front 33

As temperature of an incandescent object is increased

Back 33

More radiation is emitted with a shift to higher frequencies

Front 34

Is it possible to see light without the light interacting with matter

Back 34

No

Front 35

The electromagnetic wave model defines an Electromagnetic wave as having

Back 35

A velocity, a magnetic field, an electric feild

Front 36

Of the following, the electromagnetic waves with the shortest wavelength is

Back 36

X rays

Front 37

Of the song electromagnetic wave with the lowest energy is

Back 37

Radio wave

Front 38

Greean grass reflects

Back 38

Green light

Front 39

Green grass absorbs

Back 39

all light but green light

Front 40

We see blue sky because

Back 40

Scattering of light by air molecules and dust is more efficient when its wavelength is shorter

Front 41

A pencil is placed in a glass of water the pencil appears to be bent this is an example of

Back 41

Refraction

Front 42

And one way mirror works because it

Back 42

Reflects and transmits light at the same time

Front 43

A mirage is the result of light being

Back 43

Refracted

Front 44

a glass prism separates sunlight into a spectrum of colors because

Back 44

Shorter wavelengths are refracted the most

Front 45

Polaroid Sunglasses works best for eliminating glare because

Back 45

Reflected light is polarized in a horizontal direction only

Front 46

Be condition of farsightedness or hyperopia can be corrected with a

Back 46

Convex lens

Front 47

Today light is considered to be stream of photons with a frequency related to its energy. the relationship friends at

Back 47

Higher frequency light has more energy

Front 48

An instrument that produces a coherent beam of single frequency, in phase light is

Back 48

Laser

Front 49

The special theory of relativity is

Back 49

An analysis of how space and time are changed by motion

Front 50

The general theory of relativity explained

Back 50

Gravity as a change of space and time

Front 51

Comparing measurements made on the ground to measurements made in a very fast airplane would find that

Back 51

The length of an object is shorter , clocks run more slowly, objects have an increased mass