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4.0 Heat

Total questions: 120

Worksheet time: 4hrs 39mins

Name
Class
Date
1.
What  is the formula to calculate heat energy required to raise the temperature of any substance?
a)
Q = m Cp ∆T
b)
Q = m Cp
c)
Q =  ½ m v
d)
m = Q Cp
2.
If the specific heat of water is 4,186 J/kg∙°C, how much heat is required to increase the temperature of 1.2 kg of water from 23 °C to 39 °C? 
a)
-80,371.2 J
b)
44,938.6 J
c)
80,371.2 J
d)
112,575.9 K
3.
What would be the effect on the particles if more heat is supplied to the system?
a)
They would slow down
b)
They would stop moving
c)
They would speed up
d)
There would be no effect
4.
A sample of iron receives 50.J of heat energy that raises the temperature of the iron 25.0°C. If iron has a specific heat of  0.10 J/g°C, what is the mass of the iron sample?
a)
25 g
b)
30 g
c)
20 g
d)
50 g
5.
The specific heat is the amount of energy needed to raise the temperature one degree Celsius of 1 gram of a substance.
a)
True
b)
False
6.
Using the heat equation, what would the formula look like if we were solving for change in temperature?
a)
Q m = ∆T Cp
b)
Q / (m Cp)  =  ∆T
c)
Q m / Cp  =  ∆T
d)
m c Q  =  ∆T
7.
The specific heat(c) of copper is 0.39 J/g °C. What is the temperature change(∆t) when 100 Joules of heat(Q) is added to 20 grams?
a)
12.82 °C
b)
24.12°C
c)
351 °C
8.
What unit do you use to measure Thermal Energy?
a)
J/Kg ºC
b)
Kg
c)
ºC
d)
J
9.
The symbol for specific heat is .......
a)
Cp
b)
Q
c)
m
d)
T
10.
Water has a specific heat of 4184 J/KgºC.  Wood has a specific heat of 1760 J/KgºC.  What material needs more energy to raise the temperature 1ºC
a)
Wood
b)
Water
c)
Both are the same
11.
A high specific heat means...
a)
It heats up quickly with energy added
b)
It requires more energy to change temperature
12.
You have 20 g of water with specific heat of 4.18 J/gŸ°C.  The temperature changes from 25° C to 20° C.  How much heat energy (Q) moves from the water to the surroundings?
a)
418 Joules
b)
209 J
c)
83 J
d)
4.18 J
13.
Calculate the heat absorbed by 105.0 grams of water when it is heated to cook spaghetti. The initial temperature of the water is 20.0°C, and the final temperature of the water is 99.0°C. The specific heat of water is 4.18 J/g•°C.
a)
8778 J/g°C
b)
0.0005 J/g°C
c)
34673 J/g°C
d)
43451.1 J/g°C
14.
The temperature of an unknown piece of metal with a mass of 30.00 g changes from 25.0 °C to 35.0 °C when the metal absorbs 350.0 J of energy. What is the specific heat of the metal?
a)
1.17 J/g°C
b)
-1.17 J/g°C
c)
0.857 J/g°C
d)
-0.857 J/g°C
15.

Which is NOT a way that heat can be produced?

a)

electricity

b)

rubbing your hands together

c)

fire

d)

rain

16.

What is the earth's main source of heat?

a)

the moon

b)

the sun

c)

the ocean

d)

forests

17.

What is a conductor?

a)

a material that heat moves through easily

b)

a material that heat does not move through easily

c)

a material that turns cold when heated

d)

a tool for measuring temperature

18.

What is an insulator?

a)

a material that heat moves through easily

b)

a material that heat does not move through easily

c)

a material that turns cold when heated

d)

a tool for measuring temperature

19.

Which of these is a better insulator?

a)
b)
20.

Which of these is a measure of how hot or cold something is?

a)

temperature

b)

radiation

c)

insulation

d)

friction

21.
Heat transfers from ______ objects to cold objects. 
a)
Cold
b)
Hot
c)
Convection
d)
Radiation 
22.
Hot air ______ while cool air ____
a)
Sinks, Rises
b)
Rises, Rises
c)
Rises, Sinks
d)
Convection, Radiation 
23.

The law of conservation of energy describes how the amount of total energy can change in a closed system. Which of these statements correctly describes this law?

a)

The amount of kinetic energy in a system is a constant value.

b)

Energy can be converted from one form into another, but it cannot be created or destroyed.

c)

An object can have potential energy or kinetic energy, but not both at the same time.

d)

The amount of energy created when an object moves is equal to the energy destroyed when it stops moving.

24.

The graph below represents the relationship between the temperature of 2.0 kilograms of a pure substance and the heat energy added to the substance.

a)

AB, only

b)

BC, only

c)

BC and DE

d)

AB and CD

25.

A substance of mass 2.0 kilograms is originally in the solid state. The graph below represents the temperature of the substance as heat is added to it. During which interval is the average kinetic energy of the molecules of the substance unchanged?

a)

BC

b)

CD

c)

AB

d)

AC

26.

How is temperature related to heat?

a)

Temperature is a measure of the heat of an object.

b)

Heat causes a change in the temperature of an object.

c)

Raising the temperature causes the heat of an object to increase.

d)

Temperature and heat are two different ways to measure the same thing.

27.

Zara is warming a pot of soup on the stove. How is the motion of the particles in the soup different after the temperature of the soup increases?

a)

They move faster on average.

b)

They have less average energy.

c)

They move less freely.

d)

They vibrate and are close together

28.

The temperature of 50.0 grams of water was raised to 50.0°C by the addition of 4200 joules of heat energy. What was the initial temperature of the water?

a)

10.0°C

b)

20.0°C

c)

30.0°C

d)

60.0°C

29.
A slower particle has a lower energy than an identical, faster particle.
a)
True
b)
False
30.
When thermal energy is added to a substance, the substance's particles move:
a)
More rapidly at an increased diestance from each other.
b)
More rapidly with less distance between each other.
c)
More slowly with a greater distance between each other.
d)
More slowly with a reduced distance between each other.
31.
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.
32.
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.
33.
The temperature of a glass of cold water will eventually...
a)
Match the temperature of the surrounding environment.
b)
Always be colder than the surrounding environment.
c)
Become warmer than the surrounding environment.
d)
Never change temperature.
34.

If heat is lost by an object, the temperature of the object will

a)

rise

b)

fall

c)

remains unchanged

36.

When a piece of copper is heated, which of the following physical quantities remains constant?

a)

surface are

b)

volume

c)

density

d)

mass

36.

When a piece of copper is heated, which of the following physical quantities remains constant?

a)

surface are

b)

volume

c)

density

d)

mass

37.

The figure shows two objects P and Q which are in thermal contact with each other. Which of the following statements is true?

a)

Heat flows from object P to object Q only.

b)

Heat flows from object Q to object P only.

c)

Heat flows in both directions.

d)

The net flow of heat is zero.

38.

Which of the following statements about heat is true?

a)

Heat is not a physical quantity.

b)

Heat is measured in 0C.

c)

Heat is a form of energy.

d)

Heat is the degree of hotness of an object.

39.

The diagram shows two bodies X and Y which are in thermal equilibrium with each other. Which of the following statements is true?

a)

The temperature of X and Y is the same

b)

The weight of X and Y is the same.

c)

The volume of X and Y is the same.

d)

Both X and Y must be solids.

40.

The diagram shows part of the scale of a thermometer. What is the reading as shown?

a)

23.2 0C

b)

23.4 0C

c)

23.8 0C

d)

24.4 0C

41.

“The specific heat capacity of metal R is 450 J kg-1 0C-1.” The statement means that

a)

450 J of heat is required to increase the temperature of metal R by 10C.

b)

450 J of heat is required to increase the temperature of 1 kg of metal R by 10C.

c)

450 J of heat is required to melt 1 kg of metal R.

d)

450 J of heat is required to increase 1 g of metal R form 00C to 1000C.

42.

Lead has a higher specific heat capacity than copper. If a piece of lead of mass 200 g and a piece of copper of the same mass is heated at the same rate, which of the following statements is true?

a)

The rise in temperature of copper is greater than the rise in temperature of lead

b)

The rise in temperature of lead is greater than the rise in temperature of copper.

c)

Both metals experienced the same increase in temperature.

43.

What is the name given to the amount of heat required to change 1 kg of ice at 00C completely to water?

a)

Heat capacity

b)

Specific heat capacity

c)

Specific latent heat of fusion

d)

Specific latent heat of vapourisation.

44.

The unit of measurement of heat is

a)

Newton

b)

Newton -metre

c)

Kelvin

d)

Pascal

45.

In which of the following gas laws is the pressure kept constant?

a)

Boyle's Law

b)

Charles' Law

c)

Pressure Law

46.

For a fixed mass of gas at constant temperature in an air-tight container, which of the graphs correctly represents the relationship between pressure and volume of the gas

a)
b)
c)
d)
47.

Which law states that for a given mass of gas at constant volume, the pressure of the gas is directly proportional to its thermodynamic temperature?

a)

Boyle's Law

b)

Charles' Law

c)

Pressure Law

d)

Hooke's Law

48.

What is the physical quantity that is kept constant in Boyle’s Law, Charles’ Law and Pressure Law?

a)

Mass

b)

Volume

c)

Absolute Temperature

d)

Pressure

49.

How much heat energy is required to raise the temperature of a 4kg iron bar from 320C to 520C? (Specific heat capacity of iron = 452 Jkg-1 0C-1).

(a)  

50.

Calculate the amount of heat required to raise the temperature of 0.8 kg of copper from 350C to 600C. (Specific heat capacity of copper = 400 J kg-1 C-1).

(a)  

51.

It is possible to cook food much faster with a pressure cooker as shown above. Why is it easier to cook food using a pressure cooker?

a)

More heat energy can be supplied to the pressure cooker

b)

Heat loss from the pressure cooker can be reduced

c)

Boiling point of water in the pressure cooker is raised

d)

Food absorbs more heat energy from the high pressure steam

52.

A gas of volume 20m3 at 370C is heated until its temperature becomes 870C at constant pressure. What is the increase in volume?

a)

3.23 0C

b)

5.20 0C

c)

23.2 0C

d)

32.2 0C

53.

In the process to transfer heat from one object to another object, which of the following processes does not involve a transfer to material?

a)

Convection

b)

Radiation

c)

Evaporation

d)

Vaporisation

54.

The graph in figure below shows how the temperature of some wax changes as it cools from liquid to solid. Which section of the graph would the wax be a mixture of solid and liquid?

a)

PQ

b)

QR

c)

RS

d)

ST

55.
Warm air rises and the cool air sinks demonstrates this type of heat transfer. 
a)
conduction
b)
convection
c)
radiation
d)
Insolation 
56.
The man goes to take the hot pot off the stove with his bare hands.
a)
conduction
b)
convection
c)
radiation
57.
What happens when ice cubes melt in a glass?
a)
Heat travels from the ice to the warmer water.
b)
No energy is transferred.
c)
Heat is transferred from the warmer water to the ice cubes.
d)
The water warms up due to the humidity
58.

The specific heat of platinum is 0.133 J/g°C. How much heat(Q) is released when a 10 g piece of platinum cools from 100°C to 50°C?

a)

66.5 J

b)

665 J

c)

0.0266 J

d)

0.665 J

59.

20 g of water. specific heat of water is 4.18 J/g°C. temperature changes from 25° C to 20° C, how much heat energy (Q) moves from the water to the surroundings?

a)

418 J

b)

209 J

c)

83 J

d)

4.18 J

60.

The SI units J/g°C measures

a)

Specific heat

b)

mass

c)

temperature

d)

heat energy

61.
Copper, Stainless Steel, Carbon Steel, and Zinc were all heated using the same thermal energy.  What material would be the coolest after being heated?
a)
Copper
b)
Carbon Steel
c)
Zinc
d)
Stainless Steel
62.
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
63.
Specific heat of water is  4.18 J/g°C. Specific heat of wood is 1.760 J/g°C What material needs more heat energy to raise the temperature?
a)
Water
b)
Wood
c)
Both are same
64.
___________ is measured by the unit Joules.
a)
Heat energy
b)
Temperature
c)
Specific heat
65.
What is Specific Heat?
a)
The  amount of thermal energy required to increase the temperature of 1kg of a material by 1°C.
b)
The  amount of radiant energy required to increase the temperature of 1kgof a material by 1°C
c)
The  amount of energy required to increase the temperature of 1kgof a material by 1°C.
d)
The  amount of friction  required to increase the temperature of 1kgof a material by 1°C.
66.

Latent heat is

a)

the heat absorbed or released at a boiling process during a change of phase

b)

the heat absorbed or released at a constant temperature during a change of phase

c)

the heat absorbed or released at a constant temperature during a change of phase of 1 kg object

d)

the heat absorbed or released by an object to increase or decrease its temperature by 1 degree Celcius

67.

The heat absorbed by melting a solid is known as

a)

latent heat of fusion

b)

latent heat of solid

c)

latent heat of liquid

d)

latent heat of vaporisation

68.

The amount of heat required to change the phase of a substance depends on two factors which are

a)

surrounding temperature

b)

temperature change

c)

material

d)

the mass

69.

specific latent heat of vaporisation is

a)

the amount of heat required to change 1 kg of the substance from the solid to liquid phase without change in temperature

b)

the amount of heat required to change 1 kg of the substance from the liquid to gaseous phase without change in temperature

c)

the amount of heat required to change the temperature 1 kg of the substance by 1 degree Celcius

70.

the symbol for specific latent heat is

a)

c

b)

L

c)

Q

d)

m

71.

What is the formula to calculate specific latent heat of vaporisation?

a)

L = Q/m

b)

c = Q/(mΔƟ)

c)

Q = mcΔƟ

d)

Q = mL

72.

The graph shows the cooling curve of a substance. At which stages the specific latent heat released?

a)

AB and CD

b)

BC and DE

c)

AB and EF

d)

BC and CD

73.

When a body absorbs heat, its temperature will

a)

increase.

b)

decrease.

c)

remains constant.

74.

Which statement defines the thermal capacity (heat capacity) of a solid body?

a)

the energy needed to melt the body without a change in temperature

b)

the energy needed to raise the temperature of the body by one degree Celsius

c)

the increase in the volume of the body when its temperature is raised by one degree Celsius

d)

the total amount of internal energy in the body

75.
Gas Laws involve what three terms?
a)
Solid Liquid Gas 
b)
Speed Velocity Acceleration 
c)
Elements Compounds Mixtures 
d)
Pressure Temperature Volume 
76.
Charles' Law States...
a)
As Pressure goes up volume goes down
b)
As Pressure goes up temperature goes up
c)
As Volume goes up temperature goes up 
d)
As Pressure goes down volume goes down 
77.
Whose law states that as pressure goes up, volume goes down?
a)
Charles 
b)
Boyle
c)
Aglow
d)
Mazias 
78.
Which law?
a)
Charles 
b)
Boyle
c)
Hunsecker
d)
Newton
79.
Which law?
a)
Charles 
b)
Boyle
c)
Hooke
d)
Peter Pan 
80.
A balloon will pop in the atmosphere because..
a)
Pressure goes down volume goes up
b)
Pressure goes up volume goes down
c)
temperature goes down volume goes up
d)
volume goes down temperature goes down
81.
What is the relationship here?
a)
Pressure and Volume
b)
Volume and Temperature 
c)
Temperature and Pressure
d)
None they broke up weeks ago
82.

One goes up, one goes down.

a)

Boyle's Law

b)

Charles Law

83.

BOTH go up OR down

a)

Boyle's Law

b)

Charles' Law

84.

IF we are using Charles' law and our Volume goes UP, what must our temp do?

a)

Go UP

b)

Go DOWN

c)

Stay the same

d)

Wrong law.

85.

IF we are using Boyles' law and our Pressure goes UP, what must our volume do?

a)

Go UP

b)

Go DOWN

c)

Stay the same

d)

Wrong law.

86.
What is the formula for Boyle's Law?
a)
P1V1=P2V2
b)
P1V1/P2V2
c)
P1V2=P2V1
d)
P1/V1=P2/V2
87.
When Pressure increases then the Volume must...
a)
Increase
b)
decrease
88.
When Volume increases then Pressure must...
a)
Increase
b)
Decrease
89.
What type of relationship to pressure and volume have?
a)
direct
b)
inverse
c)
no relationship
d)
I don't know
90.
Which container will have a lower pressure?
a)
left
b)
right
c)
they both have the same pressure
d)
I don't know
91.
What happened to the volume between the two steps?
a)
volume increased
b)
volume decreased
c)
volume stayed the same
92.
Boyle's law : When _______ is held constant, the pressure and volume of a gas are ________  proportional
a)
temperature,  equally
b)
mass, inversely
c)
temperature, inversely
d)
mass, equally
93.
Convert 45°C into Kelvin
a)
320 K
b)
1200 K
c)
-228 K
d)
228 K
94.
Convert 88°C into Kelvin
a)
361 K
b)
-185 K
c)
185 K
d)
325 K
95.
If volume increases, pressure __________
Hint: Boyle's Law
a)
Increases
b)
Decreases
c)
Stays the same
d)
Is variable
96.

It is the average kinetic energy of gas molecules.

a)

Amount of gas

b)

Pressure

c)

Temperature

d)

Volume

97.

It states that the volume of a gas changes inversely with the pressure of the gas as long as the temperature and the amount of gas remain constant.

a)

Avogadro’s Law

b)

Boyle’s Law

c)

Charles’ Law

d)

Newton’s Law

98.

If you heat gas in a closed container that cannot expand, the gas will increase in

a)

volume

b)

pressure

c)

mass

d)

weight

99.

What type of relationship exists between the temperature and volume of a gas?

a)

inverse relationship

b)

direct relationship

c)

reverse relationship

d)

none of the above

100.

The graph for the Charles' law is

a)

True

b)

False

101.

Heating a gas gives its particles

a)

more energy.

b)

greater speed.

c)

a higher temperature.

d)

all of the above.

102.

A hot air balloon inflates because it is pumped full of helium.

a)

True

b)

False

103.

When the pressure of a gas is held constant, increasing its temperature ______________ its volume.

a)

Increases

b)

Decreases

104.

Pressure is always a...

a)

Push

b)

Pull

c)

Taco

d)

Mouse

105.

Pressure always moves from...

a)

High pressure to Low pressure

b)

Low pressure to High pressure

c)

Low pressure to Low pressure

d)

High pressure to High Pressure

106.

Which container will have lower pressure?

a)

Right

b)

Left

107.

Boyle's Law is the relationship between...

a)

Volume and Pressure

b)

Volume and Temperature

c)

Pressure and Temperature

d)

Mass and Volume

108.

A sample of a gas in a cylinder is shown. If the temperature is kept constant and the piston moves down to decrease volume, the pressure increases because the gas particles...

a)

Expand

b)

Become smaller

c)

Lose velocity within the container

d)

Collide more often within the container

109.

Charles' Law is the relationship between...

a)

Pressure and Volume

b)

Pressure and Temperature

c)

Volume and Temperature

d)

Mass and Volume

110.

The following graph shows ______ law.

a)

Charles' Law

b)

Boyle's Law

c)

Newton's Law

111.

Gases have...

a)

A definite shape and volume

b)

A definite shape but no definite volume

c)

No definite shape but a definite volume

d)

No definite shape or volume

112.

In gases, pressure is

a)

directly proportional to volume

b)

inversely proportional to volume

c)

directly proportional to friction

d)

inversely proportional to heat

113.

Gas pressure is caused by

a)

Gas molecules heating up

b)

Gas molecules reacting with other gas molecules

c)

Gas molecules hitting the walls of a container

d)

Gas molecules hitting other gas molecules

114.

Gauge Pressure is the difference between air and gas pressure

a)

False

b)

True

115.
If a balloon is cooled what will happen to the volume?
a)
Volume will increase
b)
Volume will decrease
c)
Volume will not change
116.
At constant pressure, what happens to temperature of a gas when the volume doubles?
a)
The temperature also doubles.
b)
The temperature decreases to half of its original volume.
c)
The temperature doesn't change.
d)
The temperature quadruples.
117.
What is the formula Charles' Law?
a)
V = T
b)
VT = VT
c)
T1 / V1 = T2 / V2
d)
V1 / T1 = V2 / T2
118.

The formulae of Pressure law is given by

a)

P1T1 =P1T2

b)

P1T2=P2T1

c)

P1/T1 = P2/T2

d)

P1/T2 = P2/T1

119.

If the pressure in a car tire is 1.88 atm at 25°C, what will be the pressure if the temperature warms to 37°C?

a)

2.78atm

b)

1.96atm

c)

1.96kPa

d)

2.76atm

120.
Volume and temperature have a ______ proportionality.
a)
direct
b)
inverse
c)
linear
d)
exponential

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