General Science - Physics (Basics)
Why does a hot air balloon rise up in the air?
Why does a hot air balloon rise up in the air?
medium Q15 of 15
Step-by-Step Solution
Step 1: Understand buoyancy and air density
Hot air expands when heated, decreasing its density compared to cold air.Step 2: Apply to hot air balloon
The lighter hot air inside the balloon causes it to rise due to buoyant force.Final Answer:
Because hot air expands and becomes lighter than cold air → Option CQuick Check:
Hot air balloon rises = Hot air lighter than cold air ✅
Quick Trick: Hot air rises because it is less dense.
Common Mistakes:
MISTAKES- Incorrectly thinking hot air is denser or reflection causes rise.
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