Fun Facts of Energy Comparison For Kids

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Here are 14 fun and thought-provoking “Energy Comparison” examples designed to help kids understand how energy is stored, used, and compared across everyday items, foods, and machines.

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Question1: Which has more energy? Apple vs. Candy Bar Apple: ~95 Calories (kcal) Candy bar: ~250 Calories	Question2: Which has more energy? 1 AA Battery vs. Phone Battery AA battery: ~3,000 mWh Smartphone battery: ~15,000 mWh
Question3: Which has more energy? 1 slice of bread vs. climbing stairs Bread: ~80 Calories Climbing 10 floors burns: ~80 Calories	Question4: Which has more energy? Sunlight vs. Lightbulb Sun delivers ~1,000 W/m² on Earth 60W bulb = 60 W
Question5: Which has more energy? 1 liter of gasoline vs. 1 liter of water Gasoline: ~34 MJ Water: 0 MJ (until heated)	Question6: Which has more energy? 1 chocolate chip cookie vs. 10-minute run Cookie: ~50 Calories 10 min run burns ~100 Calories
Question7: Which has more energy? Firecracker vs. Car engine Firecracker: short burst of chemical energy Engine: steady conversion over time	Question8: Which has more energy? Roller coaster at the top vs. bottom Top: high potential energy Bottom: high kinetic energy

Question9: Which has more energy? Microwave oven (1 min) vs. LED bulb (1 hour) Microwave: ~1,000 W × 1 min = 60,000 J LED bulb: ~10 W × 1 hr = 36,000 J	Question10: Which has more energy? Energy in 1 banana vs. powering a lightbulb Banana: ~100 Calories = ~418,000 J 60W bulb runs ~2 hours on that much energy
Question11: Which has more energy? Solar panel vs. Wind turbine Small panel: ~300 W Wind turbine: ~2 million W	Question12: Which has more energy? Lightning bolt vs. hair dryer Lightning bolt: ~1 billion joules Hair dryer: ~1,500 W = 1,500 J/sec
Question13: Which has more energy? Human body (daily use) vs. laptop Person uses ~2,000 Calories/day = ~8 million J Laptop: ~50 W × 8 hrs = 1.4 million J	Question14: Which has more energy? Bouncing ball (1 meter) vs. dropped from 5 meters

Answers

1. Candy bar has more stored energy.	2. Phone battery stores 5× more energy.
3. One slice fuels a whole stair climb!	4. The Sun is much more powerful!
5. Gasoline holds massive chemical energy.	6. You need 2 cookies to fuel that jog.
7. Both use chemical energy, but differently!	8. Same total energy, just transformed.
9. 1 minute of microwave = nearly 2 hours of LED!	10. Fruit = fuel!
11. Turbine = huge power generator!	12. One bolt = hours of hair drying!
13. You use way more energy than your laptop!	14. Higher drop = more energy converted to motion.