🔥 STUDY KUNJI EDUCATION & LEARNING CENTER
Class 7 Science – Chapter 3: HEAT
📝 MCQ TEST – 30 Questions
Instructions: Choose the correct option.
Total Questions: 30 | Marks: 30
1. Heat is a form of —
A. Matter
B. Energy
C. Force
D. Pressure
2. Heat generally flows from —
A. A colder object to a hotter object
B. A hotter object to a colder object
C. Both objects equally
D. A lower object to a higher object
3. Temperature is a measure of —
A. Weight of an object
B. Length of an object
C. Degree of hotness or coldness
D. Volume of an object
4. Which instrument is used to measure temperature?
A. Barometer
B. Thermometer
C. Speedometer
D. Measuring scale
5. The normal temperature of the human body is —
A. 25°C
B. 37°C
C. 50°C
D. 100°C
6. 37°C is approximately equal to —
A. 32°F
B. 98.6°F
C. 100°F
D. 212°F
7. A clinical thermometer is used to measure —
A. Temperature of water
B. Temperature of air
C. Human body temperature
D. Temperature of soil
8. A laboratory thermometer is mainly used to measure —
A. Human body temperature
B. Temperature of substances in a laboratory
C. Blood pressure
D. Body weight
9. The freezing point of water on the Celsius scale is —
A. 0°C
B. 32°C
C. 37°C
D. 100°C
10. The boiling point of water on the Celsius scale is —
A. 0°C
B. 32°C
C. 100°C
D. 212°C
11. The freezing point of water on the Fahrenheit scale is —
A. 0°F
B. 32°F
C. 98.6°F
D. 212°F
12. The boiling point of water on the Fahrenheit scale is —
A. 100°F
B. 180°F
C. 200°F
D. 212°F
13. The transfer of heat from a hotter object to a colder object is called —
A. Reflection
B. Transfer of heat
C. Evaporation
D. Condensation
14. How many main modes of transfer of heat are there?
A. One
B. Two
C. Three
D. Four
15. Which of the following is a mode of heat transfer?
A. Conduction
B. Reflection
C. Refraction
D. Absorption
16. The transfer of heat through a substance without actual movement of the substance is called —
A. Convection
B. Radiation
C. Conduction
D. Evaporation
17. Which of the following is a good conductor of heat?
A. Wood
B. Plastic
C. Copper
D. Rubber
18. Which of the following is a poor conductor of heat?
A. Copper
B. Aluminium
C. Iron
D. Wood
19. Metals are generally —
A. Poor conductors of heat
B. Good conductors of heat
C. Non-conductors of heat
D. Insulators only
20. The transfer of heat in liquids and gases by the actual movement of particles is called —
A. Conduction
B. Convection
C. Radiation
D. Reflection
21. When water is heated, the hot water generally —
A. Goes down
B. Rises up
C. Remains still
D. Freezes
22. Convection mainly takes place in —
A. Solids only
B. Liquids and gases
C. Solids and liquids only
D. Vacuum only
23. The transfer of heat without requiring a medium is called —
A. Conduction
B. Convection
C. Radiation
D. Circulation
24. We receive heat from the Sun mainly through —
A. Conduction
B. Convection
C. Radiation
D. Evaporation
25. Radiation can take place through —
A. Solids only
B. Liquids only
C. Gases only
D. Empty space
26. During the day, the land gets heated —
A. Slower than the sea
B. Faster than the sea
C. At the same rate as the sea
D. Never
27. The cool wind that blows from the sea towards the land during the day is called —
A. Land breeze
B. Sea breeze
C. Mountain breeze
D. Valley breeze
28. Sea breeze occurs mainly during the —
A. Night
B. Day
C. Midnight
D. Winter only
29. The cool wind that blows from the land towards the sea during the night is called —
A. Sea breeze
B. Land breeze
C. Ocean current
D. Cyclone
30. Land breeze occurs mainly because —
A. Land cools faster than the sea at night
B. Sea cools faster than the land at night
C. Land becomes hotter than the sea at night
D. There is no movement of air
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✅ Answer Key
1-B, 2-B, 3-C, 4-B, 5-B, 6-B, 7-C, 8-B, 9-A, 10-C
11-B, 12-D, 13-B, 14-C, 15-A, 16-C, 17-C, 18-D, 19-B, 20-B
21-B, 22-B, 23-C, 24-C, 25-D, 26-B, 27-B, 28-B, 29-B, 30-A
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