AP Physics 1 MCQ Practice by Topic 2027
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Pressure Practice
All questions are original. Check each answer for immediate feedback and explanation, then use the lesson link inside the explanation when a concept needs repair.
A 200 N normal force is distributed uniformly over 0.50 m². What pressure is produced?
Correct answer: B. P=F⊥/A=200/0.50=400 Pa.
In water of density 1000 kg/m³, what is the pressure increase 2.0 m deeper, using g=10 m/s²?
Correct answer: D. ΔP=ρgΔh=(1000)(10)(2)=20000 Pa.
The same normal force acts over half the area. What happens to pressure?
Correct answer: C. P=F/A, so halving area at fixed force doubles pressure.
Water pushes sideways on an aquarium wall. Which Topic 8.2 concept most directly explains this physical situation?
Correct answer: C. Fluid pressure direction: At a point in a fluid at rest, pressure acts normal to surfaces in all directions.
Which statement best defines Fluid pressure direction in Topic 8.2?
Correct answer: A. Correct definition: At a point in a fluid at rest, pressure acts normal to surfaces in all directions.
A second situation is observed: Fluid pressure pushes upward on the bottom of a submerged object. Which concept is being applied?
Correct answer: B. Fluid pressure direction is the matching concept because At a point in a fluid at rest, pressure acts normal to surfaces in all directions.
A diver feels greater water pressure deeper below the surface. Which Topic 8.2 concept most directly explains this physical situation?
Correct answer: C. Depth dependence: Pressure increases with vertical depth in a uniform fluid.
Which statement best defines Depth dependence in Topic 8.2?
Correct answer: A. Correct definition: Pressure increases with vertical depth in a uniform fluid.
A second situation is observed: Lower holes in a water container eject jets more strongly than higher holes. Which concept is being applied?
Correct answer: B. Depth dependence is the matching concept because Pressure increases with vertical depth in a uniform fluid.
Wide and narrow connected columns have same pressure at a common level. Which Topic 8.2 concept most directly explains this physical situation?
Correct answer: C. Same-depth pressure: In a connected static fluid of uniform density, points at the same depth have equal pressure regardless of container shape.
Which statement best defines Same-depth pressure in Topic 8.2?
Correct answer: A. Correct definition: In a connected static fluid of uniform density, points at the same depth have equal pressure regardless of container shape.
A second situation is observed: Hydrostatic pressure depends on depth, not total water volume above in a simple model. Which concept is being applied?
Correct answer: B. Same-depth pressure is the matching concept because In a connected static fluid of uniform density, points at the same depth have equal pressure regardless of container shape.
A barometer responds to atmospheric pressure. Which Topic 8.2 concept most directly explains this physical situation?
Correct answer: C. Atmospheric pressure: Fluid surfaces open to air have atmospheric pressure acting on them.
Which statement best defines Atmospheric pressure in Topic 8.2?
Correct answer: A. Correct definition: Fluid surfaces open to air have atmospheric pressure acting on them.
A second situation is observed: Gauge pressure often measures pressure relative to atmosphere. Which concept is being applied?
Correct answer: B. Atmospheric pressure is the matching concept because Fluid surfaces open to air have atmospheric pressure acting on them.
Which relationship best represents this Topic 8.2 idea: Pressure from normal force over area?
Correct answer: B. Use P = F⊥/A. Pressure from normal force over area.
In Topic 8.2, which variable-and-unit description belongs with P = F⊥/A?
Correct answer: C. For P = F⊥/A: P: pascal (Pa=N/m²); F: N; A: m²
For Topic 8.2, consider this real application: 100 N over .5 m² gives 200 Pa. Which relationship supports that result?
Correct answer: A. The relevant relationship is P = F⊥/A.
Which relationship best represents this Topic 8.2 idea: Hydrostatic pressure change in uniform fluid?
Correct answer: B. Use ΔP = ρgΔh. Hydrostatic pressure change in uniform fluid.
In Topic 8.2, which variable-and-unit description belongs with ΔP = ρgΔh?
Correct answer: C. For ΔP = ρgΔh: Pa; ρ: kg/m³; g: m/s²; h: m
For Topic 8.2, consider this real application: 1 m deeper in water adds about 9800 Pa. Which relationship supports that result?
Correct answer: A. The relevant relationship is ΔP = ρgΔh.
Which relationship best represents this Topic 8.2 idea: Absolute pressure at depth when surface pressure known?
Correct answer: B. Use P_abs = P_surface + ρgh. Absolute pressure at depth when surface pressure known.
In Topic 8.2, which variable-and-unit description belongs with P_abs = P_surface + ρgh?
Correct answer: C. For P_abs = P_surface + ρgh: Pa
For Topic 8.2, consider this real application: Open water uses atmospheric surface pressure. Which relationship supports that result?
Correct answer: A. The relevant relationship is P_abs = P_surface + ρgh.
In Topic 8.2, analyze this situation: Same person stands on high heel vs flat shoe. Which conclusion is most consistent with the physics?
Correct answer: C. Smaller area produces greater pressure on floor.
Which Topic 8.2 worked example best illustrates this reasoning: “Smaller area produces greater pressure on floor”?
Correct answer: B. High heel: Same person stands on high heel vs flat shoe.
A student is deciding how to begin the “High heel” situation. What is the best first move?
Correct answer: B. Start with the physical model. Smaller area produces greater pressure on floor.
In Topic 8.2, analyze this situation: Diver descends 5 m deeper. Which conclusion is most consistent with the physics?
Correct answer: C. Pressure increases by ρgΔh.
Which Topic 8.2 worked example best illustrates this reasoning: “Pressure increases by ρgΔh”?
Correct answer: B. Diver: Diver descends 5 m deeper.
A student is deciding how to begin the “Diver” situation. What is the best first move?
Correct answer: B. Start with the physical model. Pressure increases by ρgΔh.
In Topic 8.2, analyze this situation: Water pushes sideways. Which conclusion is most consistent with the physics?
Correct answer: C. Fluid pressure is not only downward; it acts normal to any surface.
Which Topic 8.2 worked example best illustrates this reasoning: “Fluid pressure is not only downward; it acts normal to any surface”?
Correct answer: B. Aquarium wall: Water pushes sideways.
A student is deciding how to begin the “Aquarium wall” situation. What is the best first move?
Correct answer: B. Start with the physical model. Fluid pressure is not only downward; it acts normal to any surface.
In Topic 8.2, a student claims: “Pressure is a force.” Which correction is best?
Correct answer: B. Pressure is force per area, with different units.
Which statement should replace this misconception in a Topic 8.2 solution: “Pressure is a force.”?
Correct answer: A. Pressure is force per area, with different units.
In Topic 8.2, a student claims: “Deeper pressure depends on container shape.” Which correction is best?
Correct answer: B. For uniform static fluid, it depends on density, g, and vertical depth.
Which statement should replace this misconception in a Topic 8.2 solution: “Deeper pressure depends on container shape.”?
Correct answer: A. For uniform static fluid, it depends on density, g, and vertical depth.
In Topic 8.2, a student claims: “Fluid pressure only points downward.” Which correction is best?
Correct answer: B. Pressure forces act normal to surfaces in all directions.
Which statement should replace this misconception in a Topic 8.2 solution: “Fluid pressure only points downward.”?
Correct answer: A. Pressure forces act normal to surfaces in all directions.
What should a student identify before calculating in Topic 8.2?
Correct answer: B. Calculate pressure, distinguish pressure from force, use hydrostatic pressure changes, and understand absolute versus gauge pressure conceptually.
Which statement best describes the AP Physics 1 scope for Topic 8.2?
Correct answer: B. Use pressure differences carefully; distinguish gauge from absolute when atmospheric pressure matters.
Which study sequence best matches this Topic 8.2 lesson?
Correct answer: B. The lesson is intentionally definition-first and explains terminology on the same page before equations and practice.