Class 7 Science

Chapter 4: Heat

MCQs and Practice Worksheet

Part A: Multiple Choice Questions (MCQs)

Q1. Heat is a form of:

A. Matter
B. Energy
C. Force
D. Sound

Answer: B

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Q2. Heat always flows from:

A. Cold to hot
B. Hot to cold
C. Cold to cold
D. Hot to hot

Answer: B

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Q3. Which instrument is used to measure temperature?

A. Barometer
B. Thermometer
C. Speedometer
D. Ammeter

Answer: B

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Q4. Which thermometer is used to measure body temperature?

A. Laboratory thermometer
B. Digital scale
C. Clinical thermometer
D. Barometer

Answer: C

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Q5. Which of the following is a good conductor of heat?

A. Wood
B. Plastic
C. Glass
D. Copper

Answer: D

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Q6. Which method of heat transfer does not require a medium?

A. Conduction
B. Convection
C. Radiation
D. Evaporation

Answer: C

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Q7. Hot air rises because:

A. It is heavier
B. It is lighter
C. It is colder
D. It is darker

Answer: B

Part B: Practice Worksheet

1. Fill in the blanks:

• Heat is a form of __________.
• Normal human body temperature is __________ °C.
• Metals are good __________ of heat.
• Heat from the sun reaches earth by __________.

2. Very Short Answer:

(a) Name any one method of heat transfer.
(b) Which type of thermometer is used in laboratories?
(c) Which gas rises when heated?

3. Short Answer:

(a) Why is a clinical thermometer not used in laboratories?
(b) What is convection?

4. Long Answer:

Explain conduction, convection, and radiation with examples.

Answer Key (For Teachers & Parents)

Fill in the blanks:

• Energy
• 37
• Conductors
• Radiation

Very Short Answers:

• Conduction / Convection / Radiation
• Laboratory thermometer
• Hot air

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Shaktimatha CBSE Learning
Class 7 Science – Chapter 4: MCQs & Worksheet

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