Question 1

A boy was trying to read the thermometer by holding its bulb. His father told him that this method is incorrect and advised him not to hold the bulb of the thermometer while reading it. Why is it so?

The bulb will break off easily.
It will give a wrong reading.
Mercury will come down to the bulb.
The bulb will expand on holding.

Answer

Correct Option: B

Question 2

What is the range of Fahrenheit scale?

90 - 100 degrees
92 - 104 degrees
93 - 104 degrees
94 - 108 degrees
98 - 120 degrees

Answer

Correct Option: D

Question 3

A nurse is about to take the temperature of a patient. One notices that the nurse jerks the clinical thermometer well, before placing it under the tongue of the patient. Why does she jerk it?

To frighten the patient
To show her experience
To bring down the level of mercury below 35 degrees centigrade
To warm up the thermometer
The jerking makes the mercury level higher

Answer

Correct Option: C

Question 4

Which of the following processes requires no medium for transfer of heat?

Radiation
Conduction
Rolling
Convection
Heating of a liquid

Answer

Correct Option: A

Question 5

What is the temperature range of a clinical thermometer?

20 - 30 degrees
35 - 42 degrees
30 - 50 degrees
30 - 35 degrees
20 - 40 degrees

Answer

Correct Option: B

Question 6

Mother is warming milk for her children. By which process does milk get warmed up?

Radiation
Convection
Conduction
Boiling
Condensation

Answer

Correct Option: B

Question 7

Why are woollen clothes used in winter season?

Woollen clothes are more stylish.
No other material was available there.
Wool is a poor conductor of heat, and can trap warm air in between its fibres.
Wool emits heat to the outside.
Sheep was being reared there on a large scale.

Answer

Correct Option: C

Question 8

Which of the following is an example of radiation?

Sea breeze and land breeze
Heat of cup being transferred to a child who is using a stainless steel spoon to drink it
Heating of water
A boy dropping a metal spoon, which was shown on to a flame
Paper catching fire and burning

Answer

Correct Option: A

Question 9

Which of the following is an insulator?

Iron
Aluminium
Lead
Plastic
Copper

Answer

Correct Option: D

Question 10

It was a hot summer day and five students decided to go out to the beach to play. But most of them came wearing wrong dresses for the occasion. Who has come properly dressed among these five students?

Student one is wearing a leather jacket above his dress.
Student two is wearing polyester shirt and pants.
Student three is wearing a woollen cardigan.
Student four is wearing a dress made of nylon.
Student five is wearing cotton shirt and trousers.

Answer

Correct Option: E

Question 11

A lady visited to another lady's house, where she noticed a copper-bottom pressure cooker. Why was a part of it made of copper?

To prevent rusting
To give it a better appearance
It is the latest style
Copper conducts heat better

Answer

Correct Option: D

Question 12

What is the range of a lab thermometer?

0 - 100 degrees
Minus 1 - 100 degrees
94 - 108 degrees
10 - 100 degrees
Minus 10 - 110 degrees

Answer

Correct Option: E

Question 13

A lady was stirring hot curry with a metallic spoon. After a while, the heat of the curry reached to her hands through the spoon. By which method was it transferred?

Rolling
Radiation
Conduction
Heat passed to her through air.
Convection

Answer

Correct Option: C

Question 14

What is the use of a kink in clinical thermometer?

To increase the beauty of the thermometer
It prevents mercury level from falling on its own.
It allows the mercury to rise up faster.
The kink allows to hold more mercury.
Kink gives it a better shape.

Answer

Correct Option: B

Question 15

A student is doing some experiments in the chemistry lab. He goes to take the temperature of a liquid, which is boiling in a beaker. While doing so, he checks the temperature of the boiling liquid by dipping a lab thermometer into it. Why does he not take the thermometer out of the liquid before reading the temperature?

The level of mercury begins to fall as soon as the lab thermometer is taken out.
The level of mercury rises when it is taken out.
He does it by mistake.
The method helps him to get the reading of desired temperature.
This is done as it is not a solid.

Answer

Correct Option: A

Description: practice questions on heat
Number of Questions: 15
Created by: Niharika Sharma
Tags: HEAT Measurement of Temperature Reading of Thermometers Transfer of Heat Kinds of Clothes in Summer and Winter Mechanism of Hearing in Humans Noise Pollution and its Control Characteristics of Waves Characteristics of Sound Waves

Heat

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