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Thermodynamics Test Review

Total questions: 47

Worksheet time: 57mins

Name
Class
Date
1.

Do molecules generally move faster at 45 C or 106 C?

a)

45 C because molecules have more energy than in 106C

b)

106 C because molecules have more energy than in 45C

c)

106 C because molecules have less energy than in 45C

d)

45C because molecules have less energy than in 106 C

2.

Specific Heat is..

a)

the temperature initial minus temperature final

b)

the amount of heat/energy required to raise 1 gram of a substance by 1°C (or K) aka "C"

c)

the temperature final minus temperature initial

d)

the item in a system with given weight in grams

3.

YOU HAVE TIME!

How much energy is needed to raise the temperature of a 20.0g piece of copper from 15.0 degrees Celsius to 25.0 degrees Celsius? (The specific heat of copper is 0.385 J/g C)

a)

20 X (25-15) =70 J

b)

20 X .385 X (25-15)= 77 J

c)

20 X .385 X (15-25)= 62 J

d)

20 X .385 X (15-0)= 77 J

4.

the lowest temperature that is theoretically possible , at which the motion of particles would be minimal (zero on the Kelvin scale)

a)

specific heat

b)

latent heat

c)

thermodynamics

d)

absolute zero

5.

a measure of the average kinetic energy of the particles in an object

a)

temperature

b)

thermometer

c)

exothermic

d)

endothermic

6.
Rank the following samples from greatest kinetic energy of the molecules to least kinetic energy of the molecules:
a)
A > B > C > D
b)
B > A > C > D
c)
B > A > D > C
d)
D > C > B > A
7.
The transfer of thermal energy between objects of different temperatures is called...
a)
temperature
b)
heat
c)
internal energy
d)
none of these
8.
It is possible to reach absolute zero
a)
true
b)
false
9.
A substance with a high specific heat:
a)
Is always extremely hot.
b)
Requires a lot of energy to become hot.
c)
Is not heavy.
d)
Does not requires a lot of energy to become hot.
10.
Thermal energy always moves:
a)
From a high temperature object to a lower temperature object.
b)
From a lower temperature object to a higher temperature object.
c)
From an object with lower kinetic energy to an object with higher kinetic energy.
d)
From an object of higher mass to an object of lower mass.
11.
_____________ explains why heat always flows from an object with a higher temperature to an object of lower temperature naturally.
a)
Thermal Expansion
b)
Caloric Theory
c)
Second Law of Thermodynamics
d)
Convection Transfer
12.
Which substance will require the least amount thermal energy to increase its temperature?
a)
Aluminum 0.90 J/g°C
b)
Lead 0.13 J/g°C
c)
Water 4.18 J/g°C
d)
Helium 5.19 J/g°C
13.
A pot of 2400g of water at a temperature of 25˚C is heated on a stove until the water boils (100˚C).  The specific heat of water is 4.18 J/(g˚C).
Determine the heat energy needed to heat the water in the pot to boiling.
a)
133.76J
b)
43,062.2J
c)
752,400J
d)
1,003,200J
14.
A material was cooled from 100ºC to 40ºC.  What is the temperature change?
a)
60ºC
b)
40ºC
c)
-60ºC
d)
-40ºC
15.

____ is a measure of the average kinetic energy among the particles of a substance.

a)

heat

b)

specific heat

c)

temperature

d)

thermal energy

16.

____ is a measure of the average kinetic energy among the particles of a substance.

a)

heat

b)

specific heat

c)

temperature

d)

thermal energy

17.

Which of these would be the coldest possible temperature?

a)

0 oF

b)

0 oC

c)

0 K

18.

Match the following temperature scales with the correct descriptions.

a)

Fahrenheit

1.

everyday measurements in U.S.

b)

Celsius

2.

everyday measurements outside of U.S.

c)

Kelvin

3.

based on absolute zero

19.

What tool is used to measure temperature?

a)

calorimeter

b)

thermometer

c)

ruler

d)

balance

20.

Water boils at 100 __ and freezes at 0 __.

a)

oF

b)

oC

c)

K

21.

Water boils at 373 __ and freezes at 273 __.

a)

oF

b)

oC

c)

K

22.

Water boils at 212 __ and freezes at 32 __.

a)

oF

b)

oC

c)

K

23.

The coldest temperature ever recorded on Earth was -89.2 oC in Antarctica. What is this temperature in oF?

a)

-129.6

b)

-67.3

c)

183.8

d)

-362.2

24.

At night, the temperature on the moon can get as cold as -130 oC. What is this in kelvin?

a)

-202

b)

-90

c)

143

d)

-403

25.

What is the boiling point of water on the Celsius temperature scale? Water boils at _____.

a)

212 ∘F

b)

273 K

c)

373 K

d)

100 ∘C

26.

What is the freezing point of water on the Fahrenheit temperature scale? Water freezes at _____.

a)

32 ∘F

b)

212 ∘F

c)

0 ∘C

d)

273 K

27.

Which of the formulas below is appropriate to use when converting from °C\degree C temperature to KK temperture? The appropriate formula to use is _______.

a)

K = °C + 273.15K\ =\ \degree C\ +\ 273.15

b)

°C −273.15 = K\degree C\ -273.15\ =\ K

c)

°C = 59(°F − 32)\degree C\ =\ \frac{5}{9}\left(\degree F\ -\ 32\right)

d)

°F = (95(°C)) + 32\degree F\ =\ \left(\frac{9}{5}\left(\degree C\right)\right)\ +\ 32

28.
Convert: 25.0 oC to oF:
a)
77 F
b)
77 C
c)
100 F
d)
100 C
29.
Convert: 150 oF to oC:
a)
65.5 C
b)
65.5 F
c)
338.5 C
d)
338.5 F
30.
Convert: -194 C to F:
a)
-317.2 F
b)
338.5 K
c)
- 273 C
d)
0 K
31.
Convert: 0 K to C
a)
-273 C
b)
-273 K
c)
273 C
d)
273 K
32.
Convert: 253 C to K:
a)
526 K
b)
625 K
c)
0 K
d)
186 K
33.
Convert: 212 F to C:
a)
100 C
b)
100 K
c)
100 F
d)
50 C
34.
Convert: 135.6 F to C:
a)
57.5 C
b)
330 K
c)
57.5 F
d)
220 C
35.
Convert: 186.5 K to C
a)
-86.4 C
b)
-50 C
c)
-68.4 C
d)
180 K
36.

Heat transfer is also called...

a)

Thermal Energy

b)

Conduction

c)

Convection

d)

Radiation

37.

The higher the temperature the higher the...

a)

Kinetic Energy

b)

Potential Energy

c)

Sound Energy

d)

Chemical Energy

38.
A microwave oven uses which of the following to heat foods.
a)
Microwave elves
b)
Radiation
c)
Convection
d)
Conduction
39.
Molecules in cold things move more _________
than in hot things.
a)
quickly
b)
slowly
c)
happily
d)
merrily
40.
In heat transfer, heat always flows from the _______________ substance to the _______________ substance.
a)
Hotter to colder
b)
Colder to hotter
c)
Hotter to hotter
d)
Colder to colder
41.
What kind of heat transfer happens when the sun is heating your body?
a)
Conduction
b)
Radiation
c)
Convection
d)
Density
42.
What are waves that can transfer heat through the vacuum of empty space?
a)
Electromagnetic waves
b)
Convection
c)
Conduction
d)
Heat
43.

If two objects have different temperatures, heat will flow from the warmer object to the cooler one UNTIL ____________.

a)

one reaches a temperature of zero

b)

they both have an equal temperature

c)

one runs out of energy

44.

READ CAREFULLY! YOU HAVE TIME!

A substance with a low specific heat requires less energy to heat up and a substance with high specific heat require more energy to heat up and heats up slower

a)

TRUE

b)

FALSE

45.
The first law of thermodynamics is a restatement of the
a)
Zeroth law of thermodynamics
b)
law of heat addition
c)
principle of entropy
d)
conservation of energy
46.

Conductor

a)

A material that thermal energy travels through easily

b)

A material that energy does NOT transfer through easily

c)

Energy that travels in the form of electromagnetic waves

47.

Objects that change temperature slowly have …

a)

high specific heat capacity

b)

low specific heat capacity

c)

high internal energy

d)

low internal energy

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