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TOPIC 6: HEAT AND TEMPERATURE

Total questions: 20

Worksheet time: 14mins

Name
Class
Date
1.

All these criteria describe about HEAT except

a)

Energy Transferred

b)

symbol for Heat is H

c)

Unit S.I for heat Joule

d)

Heat can be transferred and absorbed

2.
The movement of thermal energy from a warmer object to a cooler object is called:
a)
heat
b)
temperature
c)
motion
d)
momentum
3.
An insulator . . .
a)
Allows a lot of heat to escape
b)
Makes the temperature of an object rise
c)
Moves heat from one place to another
d)
Traps heat inside an object
4.
What is the BEST example of a conductor? 
a)
A wooden block
b)
A ceramic mug
c)
A glass cup
d)
A metal bowl
5.

What is the definition of CONVECTION

a)

When heat transfers through waves.

b)

When heat transfers from objects that are touching.

c)

warm fluid rises; cool fluid sinks

d)

Heat traveling from the sun

6.
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.
7.
The heat from a lamp allows a lizard to remain warm. This is an example of which type of heat transfer?
a)
radiation
b)
conduction
c)
convection
d)
insulation
8.

Energy that transfers from one substance to another until the temperatures are equal is called...

a)

Joe

b)

temperature

c)

MELTS

d)

heat

9.
Water boils at 100⁰ C, which is the same as___⁰F.
a)
212
b)
273
c)
32
d)
0
10.
The Law of Conservation of Energy states:
a)
Energy can created or destroyed but not transformed 
b)
Energy cannot be created or destroyed, it can only transformed
c)
Energy can't be created, destroyed or transformed
11.

__________________ is a degree of hotness or coldness of an object

a)

Temperature

b)

Heat

c)

Absolute zero

d)

Cold

12.

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

a)

Cp

b)

Q

c)

m

d)

t

13.

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

a)

Q=mCp∆t

b)

Q=mCp

c)

Q= ½mv

d)

m=QCp

14.

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

15.

Diagram shows the heating curve for 0.5 kg heated by a 100 W immersion heater. What is the specific heat capacity of the liquid?

Rajah menunjukkan lengkung pemanasan bagi 0.5 kg cecair yang dipanaskan pemanas rendam 100 W. Berapakah muatan haba tentu cecair itu?

a)

2800 kg-1 ̊ C-1

b)

2 100 kg-1 ̊ C-1

c)

1 400 kg-1 ̊ C-1

d)

4 200 kg-1 ̊ C-1

16.

5400 J of heat is used to increase the temperature of 0.8 kg metal block. The specific heat capacity of the metal block is 450 J kg-1°C-1. What is the rise in temperature of the

metal block ?


5400 J haba digunakan untuk meningkatkan suhu sebuah blok logam berjisim 0.8 kg. Muatan haba tentu blok logam itu ialah 450 J kg-1°C-1 . Berapakah peningkatan suhu blok logam itu?

a)

15

b)

23

c)

19

d)

7

17.

A cup is filled with 200 g of coffee at 60 °C. Calculate the heat released when the temperature of coffee drop to 40 °C.

Satu cawan mengandungi 200 g kopi pada 60°C.Kirakan haba yang dibebaskan apabila suhu air kopi turun kepada 40 °C.

[Specific heat capacity of coffee / Muatan haba tentu air kopi : 4 184 J kg-1°C-1]

a)

1.67 x 10^7 J

b)

1.67 x 10^4 J

c)

3,34 x 10^7 J

d)

3,34 x 10^4 J

18.

A fixed mass of a gas at constant pressure has a volume of V at 27°C. The gas will expand to a volume of 2V if the temperature is change to...


Suatu gas berjisim tetap pada tekanan malar mempunyai isipadu V pada 27°C. Gas itu akan mengembang ke isipadu 2V jika suhunya bertukar ke...

a)

327 °C

b)

54 °C

c)

54 K

d)

327 K

19.
heat always travels from _____ to ______ objects
a)
hot to cold
b)
cold to hot
c)
cold to cold
d)
hot to hot
20.
Boiling water is an example of what two types of heat transfer
a)
Conduction and Radiation
b)
Conduction and Convection
c)
Radiation and Convection

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