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I am about to start another timed physics quiz. Would you want

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I am about to start another timed physics quiz. Would you want to help? This is an example of what I did on work for this chapter: 1. An electric current heats a 225 g copper wire from 20.0 °C to 40.0 °C. How much heat was generated by the electric current? (ccopper = 0.093 cal/gm-deg)
225*0.093*(40-20) = 418.5 cals
Hi,

Thank you for requesting me.

I'll be happy to help. Please post the questions at your convenience, and let me know when the cut-off time is.

Thanks,

Ryan
Customer: replied 5 years ago.
The amount of heat necessary to raise the temperature of 1 gram of water by 1°C is
Question 1 options:
a)
1 joule
b)
1 watt
c)
1 Newton
d)
1 calorie
Save

Question 2 (1 point)

Question 2 Unsaved
When John walks barefoot across hot wooden coals, he is relying on wood’s
Question 2 options:
a)
good conduction
b)
poor conduction
c)
low specific heat capacity
d)
low radiation
Save

Question 3 (1 point)

Question 3 Unsaved
The relation f ~ T tells us that high temperature sources emit electromagnetic waves of
Question 3 options:
a)
high frequency
b)
low frequency
c)
long wavelength
d)
high penetrating power
Save

Question 4 (1 point)

Question 4 Unsaved
Heat comes to Earth from the Sun by a process of
Question 4 options:
a)
conduction
b)
convection
c)
radiation
d)
conduction and convection, though radiation is greater
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Question 5 (1 point)

Question 5 Unsaved
Climate temperature changes for land masses surrounded by water are normally
Question 5 options:
a)
less
b)
more
c)
about the same with other factors being the same
d)
none of the above
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Question 6 (1 point)

Question 6 Unsaved
When air rapidly expands, its temperature normally
Question 6 options:
a)
increases
b)
decreases
c)
remains unchanged
d)
is unaffected, but not always
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Question 7 (1 point)

Question 7 Unsaved
Water turns to steam at a temperature of
Question 7 options:
a)
100°C
b)
273 K
c)
both of these
d)
none of these
Save

Question 8 (1 point)

Question 8 Unsaved
Water changes from a liquid to a solid at temperature of
Question 8 options:
a)
0°C
b)
-273 Kelvin
c)
0 Kelvin
d)
-273°C
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Question 9 (1 point)

Question 9 Unsaved
The amount of heat transferred to a system can be measured in
Question 9 options:
a)
watts
b)
kilograms
c)
calories or joules
d)
calories only
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Question 10 (1 point)

Question 10 Unsaved
Water has a high specific heat capacity, which means that water
Question 10 options:
a)
requires a lot of energy in order to increase in temperature
b)
gives off a lot of energy in cooling
c)
absorbs a lot of energy for a small increase in temperature
d)
all of these
Save

Question 11 (1 point)

Question 11 Unsaved
Energy radiated by a hot object is carried in
Question 11 options:
a)
thermal energy
b)
sound waves
c)
electromagnetic waves
d)
both sound and electromagnetic waves
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Question 12 (1 point)

Question 12 Unsaved
Which of these is the largest amount of energy?
Question 12 options:
a)
1 calorie
b)
1 joule
c)
1 Calorie
d)
all are the same
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Question 13 (1 point)

Question 13 Unsaved
When a solid is changed to the liquid phase, the solid
Question 13 options:
a)
releases energy
b)
absorbs energy
c)
expands
d)
none of these
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Question 14 (1 point)

Question 14 Unsaved
Which of these temperatures could result from mixing a container of water at 20°C with one at 24°C?
Question 14 options:
a)
19°C
b)
22°C
c)
24°C
d)
more than 24°C
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Question 15 (1 point)

Question 15 Unsaved
Which of the following emit radiant energy?
Question 15 options:
a)
ice cubes
b)
the Sun
c)
Earth
d)
all of these and every object
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Question 16 (1 point)

Question 16 Unsaved
When a liquid is changed to a gas, the liquid
Question 16 options:
a)
releases energy
b)
absorbs energy
c)
expands
d)
none of these
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Question 17 (1 point)

Question 17 Unsaved
Radiant energy emitted by Earth has the name
Question 17 options:
a)
terrestrial radiation
b)
electromagnetic radiation
c)
heat radiation
d)
earthly radiation
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Question 18 (1 point)

Question 18 Unsaved
Temperature is generally proportional to a substance’s
Question 18 options:
a)
vibrational kinetic energy
b)
average translational kinetic energy
c)
rotational kinetic energy
d)
thermal energy
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Question 19 (1 point)

Question 19 Unsaved
A high temperature source radiates relatively
Question 19 options:
a)
long wavelengths
b)
low frequencies of radiation
c)
short wavelengths
d)
none of these
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Question 20 (1 point)

Question 20 Unsaved
When heat is added to a bucket of 20°C water, there is an increase in
Question 20 options:
a)
temperature only
b)
thermal energy only
c)
temperature and thermal energy
d)
neither temperature nor thermal energy
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45 minutes

Hi,

Ok, thanks,

Ryan
Customer: replied 5 years ago.
20 minutes left
Customer: replied 5 years ago.
11 minutes
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Customer: replied 5 years ago.
Thanks!! I missed #10 and #18. Ended up with a 90! I am all good with that! Thank you so much!! It does not tell me what the correct answers are. I will be adding a bonus!
Hi,

Thank you for the accept and the bonus. Both are greatly appreciated.

As much as I hate being wrong about anything, I'm glad you are happy with the results.

Thanks again,

Ryan

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