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heat & temperature

Total questions: 35

Worksheet time: 13mins

Name
Class
Date
1.
Heat is the _______ of energy.
a)
Transfer
b)
Measure
2.
What is the definition of CONDUCTION?
a)
When heat is transferred from objects like rays of light or electromagnetically.
b)
a  hot liquid or air that  expands, becomes less dense, and rises or becomes more dense, and sinks.
c)
When heat transfers from objects that are touching.
d)
When heat transfers through the heater or AC in your house.
3.
What is the BEST example of a conductor? 
a)
A wooden block
b)
A ceramic mug
c)
A glass cup
d)
A metal bowl
4.

Thermal energy always moves from ___________ to __________.

a)

Hot to Hot

b)

Cold to hot

c)

hotter to cooler

d)

Cooler to hotter

5.
The transfer of thermal energy between objects of different temperatures is called...
a)
temperature
b)
heat 
c)
none of these
6.
Heat energy from the sun is transferred to Earth by:
a)
conduction.
b)
radiation.
c)
convection.
d)
insulation.
7.
Heat is the movement of ______.
a)
radiation
b)
thermal energy
c)
cold
d)
fire
8.
The way heat moves in liquids and gases is called _______.
a)
convection
b)
radiation
c)
conduction
d)
temperature
9.
The heat from a hot burner to a pot is transferred by ______.
a)
convection
b)
insulation
c)
radiation
d)
conduction
10.
Heat from the sun travels to Earth by _____.
a)
conduction
b)
convection
c)
insulation
d)
radiation
11.

Energy is transferred as heat between two objects of ___________ temperatures.

a)

difference

b)

same

12.
Which direction is heat flowing in the picture?
a)
from the hand to the ice
b)
from the ice to the hand
c)
heat is not being transferred
d)
there is no way to tell
13.

What are the SI units for specific heat?

a)

oC

b)

J

c)

J/kgoC

d)

c

14.

formula of heat is

a)

Q=mcΔT

b)

ΔT = Tf - Ti

c)

c=m/QΔT

15.

The temperature of a beaker of water changed from 55oC to 30oC. What is the ΔT?

a)

85oC

b)

25oC

c)

-25oC

d)

-20oC

16.

Calculate the amount of heat required to raise the temperature of 2kg of iron from 25oC to 55oC.

(Specific heat capacity of iron is 500 J kg-1oC-1)

a)

30000J

b)

252000J

c)

33.33J

17.

Water has a specific heat capacity of ______________ J/kgoC

a)

385

b)

4200

c)

1000

d)

500

18.

What is the formula to calculate heat energy required to raise the temperature of any substance?

a)

Q=mc∆T

b)

-Q=mc∆T

c)

Q= ½mv

d)

m=QL

19.

The symbol for specific heat capacity is .......

a)

c

b)

Q

c)

m

d)

t

20.

Which of the following is used for measuring temperature?

a)

thermometer

b)

barometer

c)

anemometer

d)

scapulometer

21.

What temperature is shown on the thermometer?

a)

24°F

b)

24°C

c)

20°F

d)

30°C

22.

temperature is....

a)

The measure of kinetic energy of an objects particles

b)

the degree of hotness and coldness of a substance

c)

The heating caused by the motion of flluid due to temperature difference

d)

amount of thermal energy that can be transferred from one object to another

23.
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
24.

What is the symbol for Thermal Energy?

a)

Q

b)

T

c)

m

d)

c

25.
What unit do you use to measure Thermal Energy?
a)
J/Kg ºC
b)
Kg
c)
ºC
d)
J
26.
The way the heat is moving from the hot coffee is called...
a)
convection
b)
radiation
c)
insulation
d)
conduction
27.

SI unit for temperature

a)

Celsius and Kelvin

b)

heat

c)

specific heat

d)

temperature

28.

Amount of heat needed to raise the temperature of 1 kg of some material by 1o C

a)

kinetic energy

b)

temperature

c)

kelvin

d)

specific heat

29.

What is the boiling point of water ?

a)

212 C

b)

100 C

c)

32 C

d)

0 C

30.
The point in which a solid changes to a liquid is called-
a)
melting point
b)
freezing point
c)
boiling point
d)
condensation
31.
After taking a hot shower, James steps out of the shower onto the tile floor. The tile felt cold to his feet. Which explanation below best describes James' experience?
a)
Heat from his feet is transferred to the tile floor
b)
Heat from the tile floor is transferred to his feet
c)
Cold from the tile floor is transferred to his feet
d)
Cold from his feet is transferred to the tile floor
32.

What type of thermal energy transfer is number 1 pointing to?

a)

Convection

b)

Conduction

c)

Radiation

d)

Insulation

33.

The special latent heat of fusion of ice is 336000J/kg. What is the the quantity of heat required to melt 1.5kg of ice

at 0oC.

a)

504000J

b)

224000J

c)

0J

34.

Converts 105.8oF to oC

a)

380.95oC

b)

222.44oC

c)

41oC

d)

-167.35oC

35.

A 0.5kg of water at 60oC is mixed with mkg of water at 15oC. The final temperature of the mixture is 55oC. Find the value of m? specific heat capacity of water is 4200 Jkg-1oC-1

a)

0.0625kg

b)

0.24kg

c)

0.1kg

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