ENERGY — HOW THINGS WORK – CLASS 5 EVS EXTRA QUESTION–ANSWER
CLASS 5 EVS – CHAPTER 7 – ENERGY — HOW THINGS WORK – EXTRA QUESTION–ANSWER BANK
COMPLETE, WELL-STRUCTURED, EXAM-FOCUSED EXTRA QUESTION–ANSWERS for
Class 5 EVS – Chapter 7: Energy — How Things Work. All question types are included: Very Short, Short, Long, HOTS, Application-Based, Diagram-based, and Value-based questions.
Very Short Answer Questions (1–2 sentences)
1. What is energy?
Energy is what makes things move, shine, make sound, or change temperature.
2. Name two natural sources of energy.
Sun and wind.
3. What gives humans and animals energy to work?
Food.
4. What is a fuel?
A fuel is something that is burned to get energy, like petrol or coal.
5. What makes a balloon move when air rushes out?
The air pushes the balloon forward and causes movement.
Short Answer Questions (3–4 sentences)
1. Why do we need energy every day?
We need energy to move, play, walk, think, and do all our daily activities.
Energy helps machines, vehicles, and tools work.
Without energy, nothing can move or function.
2. How does the Sun help us in our daily life?
The Sun gives us heat and light.
It helps plants grow and dries clothes.
Solar panels use sunlight to make electricity.
3. What happens when we pluck a rubber band in Activity 2?
The rubber band vibrates and produces sound.
These vibrations create sound energy that we can hear.
Thicker and thinner bands make different types of sounds.
4. How does electricity help us?
Electricity helps run fans, lights, coolers, televisions, and refrigerators.
It gives us light, sound, heat, movement, and cooling.
It makes work faster and easier.
5. How does fuel help vehicles?
Fuel like petrol and diesel burns inside the engine.
This produces energy for the vehicle to move.
Without fuel, vehicles cannot run.
Long Answer Questions (5–6 sentences)
1. Explain why food is important as a source of energy.
Food gives our body the energy to work, play, think, and stay healthy.
When we do not eat, we feel tired because our body lacks energy.
Both humans and animals get energy from food.
Even when we sleep, our body uses stored energy to function.
Food is the basic and most important energy source for all living beings.
2. Describe the different clean sources of energy and how they help us.
Clean sources of energy include sunlight, wind, and flowing water.
Solar panels use sunlight to make electricity without pollution.
Windmills use strong winds to rotate and generate power.
Water flowing in rivers can turn turbines to create hydroelectricity.
These sources do not create smoke or harmful gases and are good for the Earth.
HOTS (Higher Order Thinking Skills)
1. Why is it better to use solar or wind energy instead of coal?
Coal creates harmful smoke and pollutes the air.
Solar and wind energy are clean and do not harm the environment.
They can be used again and again because they never get exhausted.
2. The balloon rocket moves faster if more air is filled. Why?
More air creates more pressure inside the balloon.
When released, stronger air pushes the balloon faster and farther.
3. Why should we save electricity?
Saving electricity reduces pollution from power plants.
It helps save resources like coal.
It also reduces our electricity bill and protects the environment.
Application-Based Questions
1. Give two examples where you have seen stored energy being used.
A battery torch uses stored energy in the battery.
A toy car runs using stored energy in the cells.
2. Your house has no electricity for one day. What problems will you face?
No lights or fans will work.
You cannot use TV, mobile charging, or refrigerator.
Daily tasks become difficult without electricity.
3. Write three things at home that use energy and mention their energy source.
Fan – Electricity
Stove – LPG fuel
Washing machine – Electricity
Value-Based Questions
1. Why should we use energy carefully?
Energy comes from precious resources.
Using too much energy wastes these resources and harms nature.
Saving energy helps protect the Earth for future generations.
2. What can you do at home to save energy?
Turn off lights and fans when not in use.
Use LED bulbs to save electricity.
Use sunlight instead of electric lights during the day.
Diagram / Activity Based Questions
1. What happened to the paper under the magnifying glass?
The paper became hot and began to burn.
The magnifying glass focused sunlight onto one point, producing heat.
2. What makes the pinwheel spin?
The force of the wind pushes the blades, making it rotate.
3. What makes the water wheel rotate?
Falling water pushes the spoon blades and turns the wheel.
Extra Long Answer (6 Marks)
Explain the importance of energy in our lives with examples.
Energy helps everything around us to work.
We use food energy to walk, run, play, and think.
Vehicles use fuel energy to move from one place to another.
Electricity helps us light our homes, cool our rooms, and run machines.
The Sun gives us heat and light, helping plants grow and water to dry.
Without energy, nothing in our world would function properly.
Class 5 EVS – Chapter 7: Energy—How Things Work – Multiple Choice Questions (MCQs with Answers)
complete Class 5 EVS Chapter 7: “Energy — How Things Work” – Below are MCQs (Multiple Choice Questions) based entirely on this chapter.
1. What makes things move, light up, or produce sound?
A) Air
B) Energy
C) Water
D) Fire
Answer: B) Energy
2. What pushes the balloon forward in Activity 1?
A) Gravity
B) Air coming out of the balloon
C) Heat from the air
D) Sound inside the balloon
Answer: B) Air coming out of the balloon
3. What kind of energy is shown in the balloon activity?
A) Light energy
B) Sound energy
C) Air (wind) energy
D) Water energy
Answer: C) Air (wind) energy
4. When rubber bands are plucked, what kind of energy is produced?
A) Heat energy
B) Sound energy
C) Light energy
D) Water energy
Answer: B) Sound energy
5. The water kept in sunlight becomes warm because of ______.
A) Air energy
B) Solar energy
C) Wind energy
D) Electric energy
Answer: B) Solar energy
6. What gives energy to humans and animals?
A) Water
B) Food
C) Air
D) Soil
Answer: B) Food
7. What do vehicles like cars and scooters need to run?
A) Wood
B) Petrol or diesel
C) Air
D) Sunlight
Answer: B) Petrol or diesel
8. Which of the following is used as a fuel for cooking at home?
A) LPG gas
B) Water
C) Coal
D) Air
Answer: A) LPG gas
9. Which diya burns longer in Activity 4?
A) The diya without oil
B) The diya with oil
C) Both burn equally
D) Neither burns
Answer: B) The diya with oil
10. What is acting as a fuel in the diya activity?
A) Cotton wick
B) Oil
C) Water
D) Matchstick
Answer: B) Oil
11. What type of energy is used to make a fan rotate?
A) Light energy
B) Sound energy
C) Electrical energy
D) Heat energy
Answer: C) Electrical energy
12. What should we do when we see broken electric wires?
A) Touch them carefully
B) Play near them
C) Stay away and inform an adult
D) Cover them with cloth
Answer: C) Stay away and inform an adult
13. Which of the following uses the most electricity in our homes?
A) Table
B) Fan
C) Refrigerator
D) Curtain
Answer: C) Refrigerator
14. Using LED bulbs helps to:
A) Waste more energy
B) Use more heat
C) Save electricity
D) Increase pollution
Answer: C) Save electricity
15. What happens to the pinwheel when wind blows?
A) It stops
B) It spins
C) It melts
D) It breaks
Answer: B) It spins
16. The water wheel spins because of the energy from:
A) Air
B) Sunlight
C) Flowing water
D) Electricity
Answer: C) Flowing water
17. Which energy helps dry papads or clothes in the Sun?
A) Sound energy
B) Light energy
C) Heat energy from the Sun
D) Water energy
Answer: C) Heat energy from the Sun
18. Which of the following is a clean source of energy?
A) Coal
B) Diesel
C) Wind
D) Petrol
Answer: C) Wind
19. Which is the main source of energy for life on Earth?
A) Moon
B) Sun
C) Stars
D) Clouds
Answer: B) Sun
20. Which airport in India runs completely on solar energy?
A) Delhi International Airport
B) Mumbai International Airport
C) Cochin International Airport
D) Jaipur Airport
Answer: C) Cochin International Airport
21. What is the main energy source in Bhadla Solar Park?
A) Water
B) Wind
C) Sunlight
D) Fuel
Answer: C) Sunlight
22. What does our brain use even when we are sleeping?
A) Water
B) Energy
C) Sound
D) Wind
Answer: B) Energy
23. Which of the following is NOT a source of energy?
A) Food
B) Wind
C) Paper
D) Sunlight
Answer: C) Paper
24. The energy stored in a battery is called:
A) Light energy
B) Sound energy
C) Stored (chemical) energy
D) Solar energy
Answer: C) Stored (chemical) energy
25. What kind of energy is used by a moving car?
A) Solar energy
B) Electrical energy
C) Fuel energy
D) Sound energy
Answer: C) Fuel energy
26. Which of these is a renewable source of energy?
A) Coal
B) Wind
C) Diesel
D) Petrol
Answer: B) Wind
27. What happens to paper when sunlight is focused on it using a magnifying glass?
A) It gets cooler
B) It burns
C) It glows
D) It makes sound
Answer: B) It burns
28. What helps traditional Indian houses stay cool in summer?
A) Glass walls
B) Thick walls and small windows
C) Fans
D) Air conditioners
Answer: B) Thick walls and small windows
29. What is energy efficiency?
A) Using more energy
B) Wasting energy
C) Using less energy for the same work
D) Turning off all lights
Answer: C) Using less energy for the same work
30. What is the best way to save energy at home?
A) Keep lights on all day
B) Turn off fans and lights when not needed
C) Use more electric devices
D) Leave chargers plugged in
Answer: B) Turn off fans and lights when not needed
Class 5 EVS – Chapter 7: Energy—How Things Work – Fill in the Blanks (with Answers)
“Fill in the Blanks” questions for Class 5 EVS – Chapter 7: Energy—How Things Work based on the entire NCERT chapter. Each question is followed by its correct answer for clarity and learning support.
Fill in the Blanks
- ________ is what makes things move, light up, produce sound, do work and change temperature.
Answer: Energy
- When air rushes out of a ________, it pushes it forward.
Answer: Balloon
- The movement of air generates ________ energy.
Answer: Air (wind)
- When we pluck a rubber band, it starts to vibrate and produces ________ energy.
Answer: Sound
- The Sun gives us ________ and ________.
Answer: Light, heat
- Water kept in sunlight becomes ________ than water kept in shade.
Answer: Warmer
- Food gives us ________ to move, play and work.
Answer: Energy
- Animals get energy from the ________ they eat.
Answer: Food
- Vehicles like cars and scooters use ________ or ________ as fuel.
Answer: Petrol, diesel
- The oil in a diya acts as a ________.
Answer: Fuel
- Electricity helps us to produce light, heat, sound and ________.
Answer: Movement
- We should never touch electric wires or sockets with ________ hands.
Answer: Wet
- Burning coal produces ________ and pollutes the air.
Answer: Smoke
- Electricity generated from wind, water or sunlight is called ________ energy.
Answer: Clean
- A pinwheel spins because of the energy of the ________.
Answer: Wind
- When sunlight is focused on paper through a magnifying glass, the paper ________.
Answer: Burns
- A water wheel spins when ________ flows over it.
Answer: Water
- The main source of energy for life on Earth is the ________.
Answer: Sun
- Solar panels capture sunlight and convert it into ________.
Answer: Electricity
- Windmills use the power of ________ to make electricity.
Answer: Wind
- The Bhadla Solar Park is located in the state of ________.
Answer: Rajasthan
- Cochin International Airport in Kerala runs entirely on ________ energy.
Answer: Solar
- ________ energy means using less energy to do the same work.
Answer: Energy efficiency
- ________ helps grind grains in hilly areas using the flow of water.
Answer: Gharat (watermill)
- The body stores ________ energy for later use.
Answer: Stored (chemical)
- The Sun gives more energy to the Earth in one hour than all humans use in a ________.
Answer: Year
- Traditional Indian houses stayed cool because they had thick walls and small ________.
Answer: Windows
- Batteries contain ________ energy that helps toys or torches work.
Answer: Stored
- ________ Shastra is the ancient Indian system of architecture that promotes harmony with nature.
Answer: Vaastu
- We should choose ________ sources of energy whenever possible to protect the Earth.
Answer: Clean
True or False” – Class 5 EVS Chapter 7 – “Energy: How Things Work”
5 Sets of “True or False” questions (10 each) for Class 5 EVS Chapter 7 – “Energy: How Things Work” based fully on the complete NCERT chapter
Set 1 – Understanding Energy
| No. | Statement | True/False |
|---|---|---|
| 1. | Energy helps things move, light up, make sound, and change temperature. | True |
| 2. | The Sun is the main source of energy for all life on Earth. | True |
| 3. | A balloon moves because air rushing out pushes it backward. | True |
| 4. | Rubber bands produce light energy when plucked. | False (they produce sound energy) |
| 5. | Heat energy from the Sun can warm water placed in sunlight. | True |
| 6. | Animals get energy only from sunlight. | False (they get energy from food) |
| 7. | The Flying Snake can glide through the air by flapping its wings. | False (it glides by flattening its body) |
| 8. | Food gives energy to both humans and animals. | True |
| 9. | Energy cannot be stored in our bodies. | False (our body stores energy for later use) |
| 10. | Everything that moves or changes uses energy in some form. | True |
Set 2 – Sources and Uses of Energy
| No. | Statement | True/False |
|---|---|---|
| 1. | Fuel gives energy to vehicles to move. | True |
| 2. | Cooking gas is a type of fuel. | True |
| 3. | Burning wood and coal does not cause any pollution. | False |
| 4. | Food acts as fuel for living beings. | True |
| 5. | Oil in a diya helps the flame burn longer. | True |
| 6. | Electricity is used for producing light, sound, heat, and movement. | True |
| 7. | LED bulbs use more electricity than normal bulbs. | False (they use less electricity) |
| 8. | Electricity can be dangerous if not handled properly. | True |
| 9. | Energy efficiency means wasting more energy to do the same work. | False (it means using less energy efficiently) |
| 10. | Burning coal produces clean and fresh air. | False (it causes pollution) |
Set 3 – Clean Energy and Natural Sources
| No. | Statement | True/False |
|---|---|---|
| 1. | The Sun, wind, and water are clean sources of energy. | True |
| 2. | Solar panels turn sunlight into electricity. | True |
| 3. | Windmills use wind energy to generate electricity. | True |
| 4. | Water wheels can move when water flows over them. | True |
| 5. | Fast-moving rivers can be used to generate electricity. | True |
| 6. | Clean energy causes a lot of smoke and waste. | False (it does not pollute) |
| 7. | Papads and clothes can be dried using solar energy. | True |
| 8. | Ancient ships used wind energy to travel across the sea. | True |
| 9. | Electricity produced from coal is cleaner than solar power. | False |
| 10. | Clean energy helps keep our planet healthy and safe. | True |
Set 4 – Safety and Everyday Use
| No. | Statement | True/False |
|---|---|---|
| 1. | It is safe to touch electrical wires when they are plugged in. | False |
| 2. | We should not insert fingers or objects into sockets. | True |
| 3. | Playing near electric transformers is dangerous. | True |
| 4. | Broken electric poles should be ignored. | False (inform an adult) |
| 5. | Always tell an adult if something electrical looks unsafe. | True |
| 6. | We should switch off lights and fans when not in use. | True |
| 7. | Most electricity comes from burning coal. | True |
| 8. | Using solar or wind energy helps reduce pollution. | True |
| 9. | Using less energy to do the same work is called energy efficiency. | True |
| 10. | Vaastu Shastra teaches how to use energy in harmony with nature. | True |
Set 5 – Think and Explore
| No. | Statement | True/False |
|---|---|---|
| 1. | The Sun gives more energy to Earth in one hour than all humans use in a year. | True |
| 2. | Energy helps us work, play, and grow. | True |
| 3. | Our brain does not need energy when we are sleeping. | False |
| 4. | In cold regions, cattle are kept below the living area to provide warmth. | True |
| 5. | Cochin International Airport runs entirely on solar power. | True |
| 6. | Energy can be found only in machines, not in living beings. | False |
| 7. | Wind, water, and sunlight are renewable sources of energy. | True |
| 8. | Batteries contain stored energy. | True |
| 9. | Using too much coal is good for our planet. | False |
| 10. | Energy makes our world active and alive. | True |
Chapter 7 – Energy: How Things Work
Match the Following (with Answers)
Set 1: Understanding Energy
| Column A | Column B |
|---|---|
| 1. Food is cooked | a. Produces sound |
| 2. Air from the balloon | b. Gives light and heat |
| 3. Plucked rubber band | c. Heat energy |
| 4. Sunlight on water | d. Moves things forward |
| 5. Energy | e. Helps in movement and work |
| 6. Fan | f. Converts electrical energy into movement |
| 7. Bulb | g. Produces light energy |
| 8. Refrigerator | h. Produces cooling energy |
| 9. Iron box | i. Produces heat energy |
| 10. Water wheel | j. Uses water flow to rotate |
Answers:
1 → c
2 → d
3 → a
4 → b
5 → e
6 → f
7 → g
8 → h
9 → i
10 → j
Set 2: Sources and Forms of Energy
| Column A | Column B |
|---|---|
| 1. Sun | a. Fuel for vehicles |
| 2. Food | b. Source of energy for living beings |
| 3. Petrol and diesel | c. Energy from sunlight |
| 4. Cooking gas | d. Fuel used in homes |
| 5. Wind | e. Spins windmills |
| 6. Flowing water | f. Turns turbines to make electricity |
| 7. Coal | g. Produces smoke and pollution |
| 8. Electricity | h. Powers machines and lights |
| 9. Stored energy | i. Found in batteries or our body |
| 10. Clean energy | j. Comes from natural sources without pollution |
Answers:
1 → c
2 → b
3 → a
4 → d
5 → e
6 → f
7 → g
8 → h
9 → i
10 → j
Set 3: Fun Activities and Their Learnings
| Column A | Column B |
|---|---|
| 1. Balloon experiment | a. Shows sound energy |
| 2. Rubber band experiment | b. Shows movement by air energy |
| 3. Water cup in sunlight | c. Shows heat energy from Sun |
| 4. Diya with oil | d. Shows how fuel works |
| 5. Pinwheel | e. Uses wind energy |
| 6. Magnifying glass | f. Focuses sunlight into heat energy |
| 7. Water wheel | g. Uses water power to move |
| 8. Energy Flow Game | h. Connects source, type, and use of energy |
| 9. Electricity survey | i. Identifies devices using power |
| 10. Energy diary | j. Tracks how often energy is used |
Answers:
1 → b
2 → a
3 → c
4 → d
5 → e
6 → f
7 → g
8 → h
9 → i
10 → j
Set 4: “Do You Know?” Facts
| Column A | Column B |
|---|---|
| 1. Flying Snake | a. Glides by flattening its body |
| 2. Bhadla Solar Park | b. World’s largest solar plant |
| 3. Himachal homes | c. Keep cattle below to stay warm |
| 4. Cochin Airport | d. Fully powered by solar energy |
| 5. Traditional houses | e. Thick walls and small windows |
| 6. Watermills (Gharaats) | f. Use flowing water to grind grains |
| 7. Ancient ships | g. Used wind energy for travel |
| 8. Desert plants | h. Open only at night to save water |
| 9. Vaastu Shastra | i. Ancient system using natural energy |
| 10. The Sun | j. Main source of energy for all life |
Answers:
1 → a
2 → b
3 → c
4 → d
5 → e
6 → f
7 → g
8 → h
9 → i
10 → j
Set 5: Energy in Our Daily Life
| Column A | Column B |
|---|---|
| 1. Running and playing | a. From food energy |
| 2. Lighting a bulb | b. Uses electricity |
| 3. Cooking on gas | c. Uses fuel energy |
| 4. Moving car | d. Petrol or diesel energy |
| 5. Fan spinning | e. Movement from electricity |
| 6. Drying papads | f. Uses heat from sunlight |
| 7. Windmill | g. Converts wind energy to electricity |
| 8. Torch light | h. Uses stored battery energy |
| 9. Solar panel | i. Converts sunlight into power |
| 10. Using LED bulbs | j. Saves energy efficiently |
Answers:
1 → a
2 → b
3 → c
4 → d
5 → e
6 → f
7 → g
8 → h
9 → i
10 → j
Other Important Notes Related to This Chapter
NCERT Question Answer Solution Class 5 chapter 7 – Energy: How Things Work
CBSE Summary Notes Chapter 7 – Energy: How Things Work
Extra Questions Chapter 7 – Energy: How Things Work
Practice Worksheet Chapter 7 – Energy: How Things Work