Welcome To My School Study
Practice Class 7 Science Chapter 4 Heat MCQ Questions with Answers based on the latest NCERT syllabus. Learn about thermometers, conduction, convection, radiation, clinical thermometer range, and heat transfer with detailed explanations, exam tips, and NCERT-based solutions for CBSE and State Board students.
Do You Know
Chapter Information
Subject: Science
Class: 7
Chapter: Heat
Question Type: Multiple Choice Questions (MCQs)
Difficulty Level: Easy to Moderate
Based On: Latest NCERT Syllabus
Introduction
Heat is a form of energy that flows from a hotter object to a colder one. Understanding how temperature is measured and how heat travels through different materials helps students explain many everyday situations, such as cooking food, choosing suitable clothing for different seasons, and understanding how the Sun warms the Earth. This practice set is designed according to the latest NCERT syllabus and focuses on strengthening fundamental concepts through objective questions.
What You Will Learn
✔ Difference between heat and temperature
✔ Instruments used to measure temperature
✔ Modes of heat transfer
✔ Clinical thermometer and its range
✔ Effect of colour on heat absorption
✔ Heat transfer from the Sun
Why This Topic Is Important?
The chapter Heat introduces students to important scientific concepts that are used in everyday life. Questions related to thermometers, conduction, convection, and radiation are commonly asked in school examinations and form the foundation for learning advanced physics in higher classes.
Exam Relevance
These questions are useful for:
✔ CBSE Exams
✔ State Board Exams
✔ School Tests
✔ Unit Tests
✔ Half-Yearly Exams
✔ Annual Exams
✔ Olympiad Preparation
✔ Scholarship Examinations
Q1. Which instrument is used to measure temperature?
A) Thermometer
B) Barometer
C) Ammeter
D) Speedometer
Answer
Thermometer
Concept Behind This Question
Temperature is measured using a thermometer, which indicates how hot or cold an object is.
Step-by-Step Solution
A thermometer is specially designed to measure temperature.
Other instruments have different purposes:
- Barometer measures atmospheric pressure.
- Ammeter measures electric current.
- Speedometer measures the speed of a vehicle.
Therefore, the correct answer is: Thermometer.
Exam Tip
Remember:
- Thermometer → Temperature
- Barometer → Air Pressure
- Ammeter → Electric Current
Q2. In solids, heat is generally transferred by the process of:
A) Reflection
B) Radiation
C) Convection
D) Conduction
Answer
Conduction
Concept Behind This Question
Conduction is the transfer of heat through direct contact between particles.
Step-by-Step Solution
In solids, particles are closely packed together. Heat energy passes from one particle to another without the particles changing their positions.
This method of heat transfer is known as conduction.
Therefore, the correct answer is: Conduction.
Exam Tip
Remember:
- Conduction → Solids
- Convection → Liquids and Gases
- Radiation → No Medium Required
Q3. Dark coloured clothes are preferred during:
A) Winter
B) Spring
C) Rainy season
D) Summer
Answer
Winter
Concept Behind This Question
Dark colours absorb more heat than light colours.
Step-by-Step Solution
Dark-coloured clothes absorb a larger amount of heat from sunlight, helping the body stay warm during cold weather.
In summer, light-coloured clothes are preferred because they reflect most of the sunlight.
Therefore, the correct answer is: Winter.
Exam Tip
Remember:
- Dark Colours → Absorb More Heat
- Light Colours → Reflect More Heat
Q4. The range of a clinical thermometer is:
A) 32°F to 212°F
B) 10°C to 110°C
C) 0°C to 100°C
D) 35°C to 42°C
Answer
35°C to 42°C
Concept Behind This Question
A clinical thermometer is designed specifically to measure human body temperature.
Step-by-Step Solution
Normal human body temperature is around 37°C.
A clinical thermometer is therefore designed with a limited range of 35°C to 42°C, making it suitable for measuring body temperature accurately.
Therefore, the correct answer is: 35°C to 42°C.
Exam Tip
Do not confuse:
- Clinical Thermometer → 35°C to 42°C
- Laboratory Thermometer → Wider temperature range
Q5. Heat from the Sun reaches us by the process of:
A) Radiation
B) Convection
C) Conduction
D) Insulation
Answer
Radiation
Concept Behind This Question
Heat from the Sun travels through the vacuum of space.
Step-by-Step Solution
Space does not contain enough matter for conduction or convection to occur.
Heat energy reaches the Earth in the form of electromagnetic waves, a process known as radiation.
Therefore, the correct answer is: Radiation.
Exam Tip
Remember:
Radiation does not require any material medium for heat transfer.
Important Formulas & Concepts
1. Temperature
Temperature is the measure of the degree of hotness or coldness of an object.
Measured using a thermometer.
2. Modes of Heat Transfer
Conduction
- Occurs mainly in solids.
- Heat is transferred through direct contact.
Convection
- Occurs in liquids and gases.
- Heat is transferred by the movement of particles.
Radiation
- Does not require any medium.
- Heat travels through electromagnetic waves.
3. Clinical Thermometer
- Used to measure human body temperature.
- Temperature range:
35°C to 42°C
4. Colour and Heat Absorption
- Dark colours absorb more heat.
- Light colours reflect more heat.
5. Heat from the Sun
Heat from the Sun reaches the Earth through radiation, as space is nearly a vacuum.
6. Common Measuring Instruments
- Thermometer → Temperature
- Barometer → Atmospheric Pressure
- Ammeter → Electric Current
- Speedometer → Speed
Related Practice Questions
- Why are cooking utensils generally made of metals?
- Why do people wear light-coloured clothes during summer?
- What is the difference between a clinical thermometer and a laboratory thermometer?
- Which mode of heat transfer occurs in boiling water?
- Why can heat from the Sun reach the Earth even though space is a vacuum?
Mini Quiz Challenge
True or False
- A thermometer measures temperature.
- Conduction mainly occurs in solids.
- Dark-coloured clothes absorb less heat.
- A clinical thermometer measures body temperature.
- Radiation requires a material medium.
Exam Tips
✔ Learn the three modes of heat transfer and their examples.
✔ Remember the temperature range of a clinical thermometer.
✔ Understand the difference between heat and temperature.
✔ Revise the uses of common scientific instruments.
✔ Practice identifying real-life examples of conduction, convection, and radiation.
Quick Revision Notes
✔ Thermometer measures temperature.
✔ Conduction is the main mode of heat transfer in solids.
✔ Dark-coloured clothes absorb more heat.
✔ Clinical thermometer range is 35°C to 42°C.
✔ Heat from the Sun reaches the Earth through radiation.
✔ Radiation does not require a material medium.
Common Mistakes Students Make
❌ Confusing heat with temperature.
❌ Thinking convection occurs in solids.
❌ Believing radiation requires air or another medium.
❌ Mixing up the clinical thermometer with the laboratory thermometer.
❌ Assuming dark-coloured clothes are better for summer.
Key Takeaways
- A thermometer is used to measure temperature.
- Conduction is the primary mode of heat transfer in solids.
- Dark-coloured clothes absorb more heat and are preferred in winter.
- A clinical thermometer has a range of 35°C to 42°C.
- Heat from the Sun reaches the Earth by radiation.
FAQs
1. Which instrument is used to measure temperature?
A thermometer is used to measure temperature.
2. Which mode of heat transfer occurs in solids?
Heat is generally transferred through conduction in solids.
3. Why are dark-coloured clothes worn in winter?
Dark colours absorb more heat, helping keep the body warm.
4. What is the range of a clinical thermometer?
The range of a clinical thermometer is 35°C to 42°C.
5. How does heat from the Sun reach the Earth?
Heat from the Sun reaches the Earth through radiation, which does not require a material medium.
Conclusion
This Class 7 Science MCQ Practice Set covers the key concepts of the Heat chapter, including temperature measurement, heat transfer, thermometers, and the properties of heat absorption. Regular practice of these NCERT-based questions helps students build strong conceptual understanding, improve scientific reasoning, and perform confidently in school examinations.
NCERT Reference
Book: NCERT Science Class 7
Chapter: Chapter 4 – Heat
Based On: Latest NCERT Curriculum (CBSE)
Related links
- Class 7 Maths Chapter 2 Fractions and Decimals – Part 8
- Class 7 Maths Chapter 2 Fractions and Decimals,division – Part 7
- Class 7 Maths Chapter 2 Fractions and Decimals – Part 6
- Class 7 Maths Chapter 2 Fractions and Decimals MCQs – Part 5
- Class7 Maths Chapter2 Fractions, Decimals, multiplication MCQ – Part 4
- Class 7 Maths Chapter2 Fractions and Decimals all topic MCQ -Part 3
- Class 7 Maths Chapter 2 Fractions and Decimals MCQ – Part 2
Latest Post
- Class 9 Maths Chapter 4 Linear Equations in Two Variables
- Class 7 Maths Chapter 4 Simple Equations
- Class 8 Maths Chapter 4 Practical Geometry
- Class 10 Maths Chapter 4 Quadratic Equations
- Class 9 Science Chapter 1 Matter in Our Surroundings
Join Our Other Communities
Instagram , Youtube , Facebook
