NEW
Font size
S
M
L
XL
Worksheets5.1 Thermal Spectra GOW
Total questions: 10
Worksheet time: 15mins
Name
Class
Date
1.
1. What are the topics of the graphs?
a)
The relative brightness of the continuous spectra and the frequency (K) of different stars and objects at different temperatures (Hz).
b)
The relative brightness of the continuous spectra and the frequency (Hz) of different stars and objects at different temperatures (K).
c)
The relative brightness of the emission spectra and the frequency (K) of different stars and objects at different temperatures (Hz).
d)
The relative brightness of the emission spectra and the frequency (Hz) of different stars and objects at different temperatures (K).
2.
2. What quantities are being compared on the x axis?
a)
Brightness (relative)
b)
Frequency (Hz)
c)
Temperature (K)
d)
Continuous Spectra
3.
3. What quantities are being compared on the y axis?
a)
Brightness (relative)
b)
Frequency (Hz)
c)
Temperature (K)
d)
Continuous Spectra
4.
4. What is the temperature of a human?
a)
15,000 K
b)
3,000 K
c)
1,800 K
d)
310 K
5.
5. Which object is the brightest and has the greatest range in frequency?
a)
glowing steel 1,800 K
b)
the sun 5,800 K
c)
star 3,000 K
d)
star 15,000 K
6.
6. Which of the following is an observation that can be made based on interpreting the graph?
a)
Objects with hotter temperatures emit higher frequencies of energy and brightness.
b)
Objects with cooler temperatures emit higher frequencies of energy and brightness.
c)
Objects with hotter temperatures emit very low frequencies of energy and brightness.
7.
7. The temperature of the sun is ____________ the temperature of a human.
a)
lower than
b)
higher than
c)
the same as
8.
8. The spectrum of the sun is ______________ the spectrum of a human.
a)
completely below
b)
partly above
c)
completely above
9.
9. As the temperature increases, the amount of light at any frequency _____________.
a)
decreases
b)
increases
c)
stays the same
10.
10. The peak of a human's spectrum is the __________ range.
a)
infrared
b)
ultraviolet
c)
x-ray
Reset
