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Ryan
Ryan, Engineer
Category: Homework
Satisfied Customers: 7574
Experience:  B.S. in Civil Engineering
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I am about to start another timed physics quiz. Would you want

Customer Question

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
Submitted: 3 years ago.
Category: Homework
Expert:  Ryan replied 3 years ago.
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 3 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
Save

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
Save

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
Save

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
Save

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
Save

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
Save

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
Save

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
Save

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
Save

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
Save

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
Save

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
Save

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
Save

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
Save

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
Save


45 minutes

Expert:  Ryan replied 3 years ago.
Hi,

Ok, thanks,

Ryan
Customer: replied 3 years ago.
20 minutes left
Customer: replied 3 years ago.
11 minutes
Expert:  Ryan replied 3 years ago.
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Ryan, Engineer
Category: Homework
Satisfied Customers: 7574
Experience: B.S. in Civil Engineering
Ryan and other Homework Specialists are ready to help you
Customer: replied 3 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!
Expert:  Ryan replied 3 years ago.
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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Ryan
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B.S. in Civil Engineering