Question detail
Pressure and pressure differences in fluids (physics only) scenario: a velocity-time graph shows acceleration, steady speed, and deceleration. Which answer best addresses Pressure on a surface (physics only) and the objective to (Physics only) Explain why a larger area gives a smaller pressure for the same force?
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 velocity graph scenario, apply pressure to (Physics only) Explain why a larger area gives a smaller pressure for the same force while keeping force versus pressure separate.
- B. In the velocity graph scenario, mix up force versus pressure and ignore pressure.
- C. Use a general revision statement without applying Pressure on a surface (physics only) to the situation.
- D. Choose a different forces topic instead of explaining (Physics only) Explain why a larger area gives a smaller pressure for the same force.
Answer
The correct answer is: In the velocity graph scenario, apply pressure to (Physics only) Explain why a larger area gives a smaller pressure for the same force while keeping force versus pressure separate.
Explanation
The correct option is In the velocity graph scenario, apply pressure to (Physics only) Explain why a larger area gives a smaller pressure for the same force while keeping force versus pressure separate.. It is correct because the scenario says a velocity-time graph shows acceleration, steady speed, and deceleration, which must be interpreted through Pressure on a surface (physics only). This directly supports the learning objective to (Physics only) Explain why a larger area gives a smaller pressure for the same force. Use values 5, 9, and 14 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 Pressure
Students often think that increasing the area always increases pressure, not realizing that pressure is force per unit area.
Remember that pressure decreases when the same force is applied over a larger area. Use the formula for pressure (P = F/A) to clarify this relationship.
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