Question detail

Which option best applies atmospheric pressure for Atmospheric pressure (physics only) in AQA GCSE Physics Forces?

Try the question, check the answer, then read the explanation to understand the curriculum point.

Show answer Topic hub Objective page

At a glance

MCQ

Type

practice

Style

Topic

Pressure and pressure differences in fluids (physics only)

Question

A. The weight of air particles colliding with surfaces — graph focus for atmospheric pressure
B. This confuses force and pressure and does not answer Atmospheric pressure (physics only).
C. This is too vague because it does not use the force or motion quantity named in the objective.
D. This reverses the physical cause and effect for Pressure and pressure differences in fluids (physics only).

Answer

The correct answer is: The weight of air particles colliding with surfaces — graph focus for atmospheric pressure

Explanation

The correct option is The weight of air particles colliding with surfaces — graph focus for atmospheric pressure. The weight of air particles colliding with surfaces — graph focus for atmospheric pressure is correct because it matches the approved learning objective to (Physics only) Describe atmospheric pressure as pressure caused by air particles colliding with surfaces. This answer belongs to Atmospheric pressure (physics only) within Pressure and pressure differences in fluids (physics only), so it must use precise AQA GCSE Physics forces and motion vocabulary. The other options are wrong because they either confuse force and pressure, omit the required force or motion condition, or move away from the exact subtopic being tested.

Common mistake

Misunderstanding Atmospheric Pressure

Students often think atmospheric pressure only acts downwards instead of in all directions due to air particles colliding with surfaces.

Emphasize that atmospheric pressure is caused by air particles colliding with surfaces and acts in all directions, not just downwards.

Related flashcards

Flashcard 1 of 5

Press Space to flip, arrows to move

Pressure and pressure differences in fluids (physics only) scenario: a force meter stretches a spring and the extension is measured. Which answer best addresses Atmospheric pressure (physics only) and the objective to (Physics only) Describe atmospheric pressure as pressure caused by air particles colliding with surfaces?