When the burner in a hot air balloon is turned on, the temperature of the air in the balloon ________ causing its volume to _________ and the balloon _________.
Responses
A decreases, expand, sinkdecreases, expand, sink
B increases, expand, riseincreases, expand, rise
C decreases, contract, risedecreases, contract, rise
D increases, contract, sink
B) increases, expand, rise
To answer this question, we need to understand the relationship between temperature, volume, and buoyancy in a hot air balloon.
When the burner in a hot air balloon is turned on, it heats up the air inside the balloon. This increase in temperature causes the air molecules to move faster and spread out, which leads to an increase in volume. So, the correct answer is "increases, expand, rise" (Option B).
Explanation:
- The temperature of the air in the balloon increases: When the burner is turned on, it releases a flame that heats up the air inside the balloon.
- The volume of the air in the balloon expands: The increase in temperature causes the air molecules to move faster and spread out, which leads to an increase in volume.
- The balloon rises: As the volume of the heated air increases, it becomes less dense than the surrounding air, causing the balloon to become buoyant and rise in the atmosphere.
Therefore, the correct answer is B - increases, expand, rise.