Question detail
Pressure and pressure differences in fluids (physics only) scenario: air resistance changes until terminal velocity is reached. Which answer best addresses Atmospheric pressure (physics only) and the objective to (Physics only) Interpret simple examples involving atmospheric pressure and pressure differences?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Pressure and pressure differences in fluids (physics only)
Question
- A. In the parachutist scenario, apply atmospheric pressure to (Physics only) Interpret simple examples involving atmospheric pressure and pressure differences while keeping force versus pressure separate.
- B. In the parachutist scenario, mix up force versus pressure and ignore atmospheric pressure.
- C. Use a general revision statement without applying Atmospheric pressure (physics only) to the situation.
- D. Choose a different forces topic instead of explaining (Physics only) Interpret simple examples involving atmospheric pressure and pressure differences.
Answer
The correct answer is: In the parachutist scenario, apply atmospheric pressure to (Physics only) Interpret simple examples involving atmospheric pressure and pressure differences while keeping force versus pressure separate.
Explanation
The correct option is In the parachutist scenario, apply atmospheric pressure to (Physics only) Interpret simple examples involving atmospheric pressure and pressure differences while keeping force versus pressure separate.. It is correct because the scenario says air resistance changes until terminal velocity is reached, which must be interpreted through Atmospheric pressure (physics only). This directly supports the learning objective to (Physics only) Interpret simple examples involving atmospheric pressure and pressure differences. Use values 5, 9, and 13 only if the question asks for a calculation. The answer earns credit by naming the relevant force or motion quantity, using units when needed, and avoiding the boundary error force versus pressure.
Common mistake
Misunderstanding Atmospheric Pressure
Students often think that atmospheric pressure only acts downwards, ignoring its effects in all directions.
Emphasize that atmospheric pressure acts in all directions due to air particles colliding with surfaces, which can be illustrated with examples like suction cups or how a straw works. In Atmospheric pressure (physics only), correct the mistake by naming the relevant force or motion quantity and checking force and pressure.
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