Question 1

The total energy radiated by a blackbody depends on:

Accepted Answer

A) the fourth power of its temperature. 
B) the square of its temperature. 
C) the square root of its temperature. 
D) the cube root of its temperature. 
E) the cube of its temperature. 
A) the fourth power of its temperature. 
B) the square of its temperature. 
C) the square root of its temperature. 
D) the cube root of its temperature. 
E) the cube of its temperature.

Question 2

The product of the wavelength times the frequency of a wave is its ________.

Accepted Answer

The answer of The product of the wavelength times the...

Question 3

In a wave, the distance from peak to peak is called the wave's ________.

Accepted Answer

The answer of In a wave, the distance from peak...

Question 4

How does human vision's peak in color sensitivity relate to the Sun?

Accepted Answer

Our eyes are tuned to utilize

Question 5

Which of these is constant for ALL types of electromagnetic radiation in a vacuum?

Accepted Answer

A) amplitude 
B) wavelength 
C) frequency 
D) velocity 
E) photon energy 
A) amplitude 
B) wavelength 
C) frequency 
D) velocity 
E) photon energy

Question 6

The speed of light in water compared to the speed of light in a vacuum is

Accepted Answer

A) slower. 
B) faster. 
C) the same. 
D) can be faster or slower depending on the color. 
E) can be faster or slower depending on the intensity. 
A) slower. 
B) faster. 
C) the same. 
D) can be faster or slower depending on the color. 
E) can be faster or slower depending on the intensity.

Question 7

Very low temperature molecular clouds emit most of their light in which part of theelectromagnetic spectrum?

Accepted Answer

A) the visible 
B) the X-ray 
C) the ultraviolet 
D) the radio 
E) the infrared 
A) the visible 
B) the X-ray 
C) the ultraviolet 
D) the radio 
E) the infrared

Question 8

X-rays travel at a greater speed than radio waves.

Accepted Answer

A) True 
 B)False

Question 9

The distance between two successive wave crests is the ________ of a wave.

Accepted Answer

The answer of The distance between two successive wave crests...

Question 10

Star A and star B have the same temperature, but star A is 5 times bigger than star B. Whichstatement below is correct?

Accepted Answer

A) Star A is redder and dimmer than star B. 
B) Star A is bluer and dimmer than star B. 
C) Star A is redder and brighter than star B. 
D) Star A is bluer and brighter than star B. 
E) Star A and star B have the same color, but star A is brighter. 
A) Star A is redder and dimmer than star B. 
B) Star A is bluer and dimmer than star B. 
C) Star A is redder and brighter than star B. 
D) Star A is bluer and brighter than star B. 
E) Star A and star B have the same color, but star A is brighter.

Question 11

Which form of electromagnetic radiation would be blocked in the stratosphere by ozone?

Accepted Answer

A) cosmic rays 
B) ultraviolet 
C) visible light 
D) infrared 
E) microwaves 
A) cosmic rays 
B) ultraviolet 
C) visible light 
D) infrared 
E) microwaves

Question 12

What two regions of the electromagnetic spectrum are best utilized by ground-basedastronomers, and why?

Accepted Answer

The atmosphere is op

Question 13

Knowing the peak emission wavelength of a blackbody allows you to determine its________.

Accepted Answer

The answer of Knowing the peak emission wavelength of a...

Question 14

Gamma rays are a type of electromagnetic radiation.

Accepted Answer

A) True 
 B)False

Question 15

Star A has a temperature $1 / 2$ hat of star B, but star A is 5 times bigger than star B. Whichstatement below is correct?

Accepted Answer

A) Star A is redder and dimmer than star B. 
B) Star A is bluer and dimmer than star B. 
C) Star A is redder and brighter than star B. 
D) Star A is bluer and brighter than star B. 
E) Star A and star B have the same color, but star A is brighter. 
A) Star A is redder and dimmer than star B. 
B) Star A is bluer and dimmer than star B. 
C) Star A is redder and brighter than star B. 
D) Star A is bluer and brighter than star B. 
E) Star A and star B have the same color, but star A is brighter.

Question 16

The two forms of electromagnetic radiation that penetrate the atmosphere best are:

Accepted Answer

A) X-rays and gamma rays. 
B) ultraviolet and visible light. 
C) visible and infrared light. 
D) visible and radio waves. 
E) infrared and microwaves. 
A) X-rays and gamma rays. 
B) ultraviolet and visible light. 
C) visible and infrared light. 
D) visible and radio waves. 
E) infrared and microwaves.

Question 17

The Sun's blackbody curve peaks in the ________ portion of the spectrum.

Accepted Answer

The answer of The Sun's blackbody curve peaks in the...

Question 18

Very hot, young stars, like those in Messier 2 emit most of their light in which part of theelectromagnetic spectrum?

Accepted Answer

A) the visible 
B) the X-ray 
C) the ultraviolet 
D) the radio 
E) the infrared 
A) the visible 
B) the X-ray 
C) the ultraviolet 
D) the radio 
E) the infrared

Question 19

Star A has a temperature 1/4 that of star B. Both star A and star B are the same physical size.Which statement below is correct?

Accepted Answer

A) Star A is redder and dimmer than star B. 
B) Star A is bluer and dimmer than star B. 
C) Star A is redder and brighter than star B. 
D) Star A is bluer and brighter than star B. 
E) Star A and star B have the same color, but star A is brighter. 
A) Star A is redder and dimmer than star B. 
B) Star A is bluer and dimmer than star B. 
C) Star A is redder and brighter than star B. 
D) Star A is bluer and brighter than star B. 
E) Star A and star B have the same color, but star A is brighter.

Question 20

The temperature scale that places zero at the point where all atomic and molecular motionceases is:

Accepted Answer

A) Fahrenheit. 
B) Celsius. 
C) Kelvin. 
D) centigrade. 
E) Ransom. 
A) Fahrenheit. 
B) Celsius. 
C) Kelvin. 
D) centigrade. 
E) Ransom.

Exam 3: Radiation: Information From the Cosmos

The total energy radiated by a blackbody depends on:

The product of the wavelength times the frequency of a wave is its ________.

In a wave, the distance from peak to peak is called the wave's ________.

How does human vision's peak in color sensitivity relate to the Sun?

Which of these is constant for ALL types of electromagnetic radiation in a vacuum?

The speed of light in water compared to the speed of light in a vacuum is

Very low temperature molecular clouds emit most of their light in which part of theelectromagnetic spectrum?

X-rays travel at a greater speed than radio waves.

The distance between two successive wave crests is the ________ of a wave.

Star A and star B have the same temperature, but star A is 5 times bigger than star B. Whichstatement below is correct?

Which form of electromagnetic radiation would be blocked in the stratosphere by ozone?

What two regions of the electromagnetic spectrum are best utilized by ground-basedastronomers, and why?

Knowing the peak emission wavelength of a blackbody allows you to determine its________.

Gamma rays are a type of electromagnetic radiation.

Star A has a temperature 1/21 / 21/2 hat of star B, but star A is 5 times bigger than star B. Whichstatement below is correct?

The two forms of electromagnetic radiation that penetrate the atmosphere best are:

The Sun's blackbody curve peaks in the ________ portion of the spectrum.

Very hot, young stars, like those in Messier 2 emit most of their light in which part of theelectromagnetic spectrum?

Star A has a temperature 1/4 that of star B. Both star A and star B are the same physical size.Which statement below is correct?

The temperature scale that places zero at the point where all atomic and molecular motionceases is:

Charting the Heavens: The Foundations of Astronomy

The Copernican Revolution: The Birth of Modern Science

Spectroscopy: the Inner Workings of Atoms

Telescopes: The Tools of Astronomy

The Solar System: Comparative Planetology and Formation Models

Earth: Our Home in Space

The Moon and Mercury: Scorched and Battered Worlds

Venus: Earths Sister Planet

Mars: a Near Miss for Life

Jupiter: Giant of the Solar System

Saturn: Spectacular Rings and Mysterious Moons

Uranus and Neptune: The Outer Worlds of the Solar System

Solar System Debris: Keys to Our Origin

Exoplanets: Planetary Systems Beyond Our Own

The Sun: Our Parent Star

The Stars: Giants, Dwarfs, and the Main Sequence

The Interstellar Medium: Gas and Dust Among the Stars

Star Formation: a Traumatic Birth

Stellar Evolution: The Life and Death of a Star

Stellar Explosions: Novae, Supernovae, and the Formation of the Elements

Neutron Stars and Black Holes: Strange States of Matter

The Milky Way Galaxy: a Spiral in Space

Galaxies: Building Blocks of the Universe

Galaxies and Dark Matter: The Large-Scale Structure of the Cosmos

Cosmology: The Big Bang and the Fate of the Universe

The Early Universe: Toward the Beginning of Time

Life in the Universe: Are We Alone

Filters

Star A has a temperature $1 / 2$ hat of star B, but star A is 5 times bigger than star B. Whichstatement below is correct?