Chapter Exam

Chapter 8: Heat and Temperature — Online MCQ Test

Q: Which instrument is used to measure temperature?

Answer: B. Thermometer — A thermometer is used to measure the temperature of a body or surroundings.

Q: Heat travels through solids mainly by:

Answer: B. Conduction — In solids, heat is transferred mainly by conduction from particle to particle.

Q: Which of the following statements about temperature is correct?

Answer: B. It tells how hot or cold a body is — Temperature indicates the degree of hotness or coldness of a body. Heat is a form of energy, not the same as temperature.

SCIENCE · Samacheer Kalvi 7th · Tamil Nadu State Board

Practice Chapter 8: Heat and Temperature with a free chapter-wise online MCQ test for Tamil Nadu State Board Samacheer Kalvi 7th SCIENCE. This chapter covers: Heat temperature conduction convection Heat transfer thermal expansion and temperature measurement. AI-generated questions from basic to board-exam level, with instant results and explanations.

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Chapter 8: Heat and Temperature — Important Questions & Answers (FAQ)

Frequently asked questions from Tamil Nadu State Board Samacheer Kalvi 7th SCIENCE — Chapter 8: Heat and Temperature, with answers and explanations. These are sample questions; the exam has its own separate question set.

What is heat?

A. A measure of hotness
B. Energy transferred from a hotter body to a colder body ✓
C. The temperature of an object
D. A type of matter

Answer: B. Energy transferred from a hotter body to a colder body
Heat is the energy that flows from a body at higher temperature to a body at lower temperature.

Which instrument is used to measure temperature?

A. Barometer
B. Thermometer ✓
C. Speedometer
D. Anemometer

Answer: B. Thermometer
A thermometer is used to measure the temperature of a body or surroundings.

Heat travels through solids mainly by:

A. Convection
B. Conduction ✓
C. Evaporation
D. Melting

Answer: B. Conduction
In solids, heat is transferred mainly by conduction from particle to particle.

Which of the following statements about temperature is correct?

A. It measures the amount of heat in a body
B. It tells how hot or cold a body is ✓
C. It is the same as heat
D. It is measured in joules

Answer: B. It tells how hot or cold a body is
Temperature indicates the degree of hotness or coldness of a body. Heat is a form of energy, not the same as temperature.

Which statement is correct about a laboratory thermometer compared with a clinical thermometer?

A. A laboratory thermometer has a kink, but a clinical thermometer does not
B. A clinical thermometer measures the temperature of the human body ✓
C. A laboratory thermometer is used only for fever
D. Both have exactly the same range and use

Answer: B. A clinical thermometer measures the temperature of the human body
A clinical thermometer is designed to measure body temperature, while a laboratory thermometer is used for experiments.

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