Chapter 8: Heat and Temperature — Online MCQ Test
SCIENCE · Samacheer Kalvi 7th · Tamil Nadu State Board
Practice Chapter 8: Heat and Temperature with a free chapter-wise online MCQ test.
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.
Chapter 8: Heat and Temperature — Important Questions & Answers
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.
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.
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.
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.
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.
A clinical thermometer is designed to measure body temperature, while a laboratory thermometer is used for experiments.