High energy photons have a) high temperature b) large wavelengths c) high mass d) high frequencies 2.

1.High energy photons have

a) high temperature

b) large wavelengths

c) high mass

d) high frequencies

2. In investigating the heights of humans, categorizing the heights by large intervals provides ____ information about the distribution of different heights, than categorizing by small height intervals.

a) less

b) more

3. See Figure 8.2. Which data set has the smallest range of values of height?

a)NBA players

b) all adults

c) female Olympic gymnasts

4. Physical insight develops when

a) there is enough data to create mathematical models.

b) when a distribution function is turned into a histogram.

c) when data is analyzed with large binning.

5. Raising the dimmer-switch for a household light bulb

a) decreases the amount of short-wavelength light produced.increases the amount of short-wavelength light produced.

b) increases the mass in the bulb filament

c) decreases the amount of current that passes through the bulb filament

6. If the peak of the photon distribution of a light source is anywhere between red and violet, to the human eye, the source will appear

a) white

b) blue

c) red

d) infrared

7. For objects that are hot to humans, in everyday life, like an electric stove there is more ___ light, than ___ light.

a) blue; infrared

b) red; blue

c) blue; red

d) white; red

8. The sun produces most of its light in which color?

a) infrared-red

b) greenish-yellow

c) blue-white

d) ultraviolet

9. Which unit for temperature begins its scale at the value of zero?

a) the Kelvin scale

b) the Fahrenheit scale

c) the Celsius scale

10. The peak of a black body curve

a) shifts towards higher energy photons for hotter objects.

b) shifts towards lower frequency photons for hotter objects.

c) is red light for hot or cool objects.

d) is the peak of the electric field component of the electromagnetic wave.

11.Which color of light, of those listed below, has the greatest energy?

a) green

b) yellow

c) infrared

d) red

12. An object of which temperature produces more violet light than red light?

a) 20, 000 kelvin

b) 6, 000 kelvin

c) 2, 000 kelvin

13. A star whose temperature is twice as hot as another star, will be brightest with photons that are

a) twice as energetic as the most abundant photons of the cooler star.

b) twice the wavelength of the most abundant photons of the cooler star.

c) half the energy of the most abundant photons of the cooler star.

d) half the frequency of the most abundant photons of the cooler star.

14. The rate of photon production by a luminous object depends on the object's 

a) composition, alone.

b) temperature and chemical composition.

c) temperature, chemical composition, shape, and state of matter.

d) temperature, alone.

15. In words, the Stephan-Boltzmann law says

a) The emission rate of energy in photons of a light source is inversely proportional to the wavelength of light its brightest in.The emission rate of energy in photons of a light b) source is proportional to the temperature to the fourth power.

c) The temperature of an object is proportional to the total energy produced in the form of light, to the fourth power.

d) The temperature of an object is inversely proportional to the wavelength of light it is brightest in.

16. If you double the surface temperature of a star, it will produce ___ total light energy.

a) sixteen times more

b) four times more

c) one-sixteenth the 

d) half of the