AP Physics 1 Flashcards: Pressure

What this deck covers

This deck focuses on Pressure, giving you a quick way to review the definitions, rules, and examples that matter most for AP Physics 1.

How to use these flashcards

Work through these flashcards in short sessions. Try to answer each prompt before flipping the card, then revisit any cards you miss until the explanation feels automatic.

Flashcard 1: What does $\rho$ represent in the fluid pressure formula?

Answer: Density of the fluid. Mass per unit volume of the fluid.

Flashcard 2: Which physical quantity is constant in an isobaric process?

Answer: Pressure. Constant pressure process definition.

Flashcard 3: Find the pressure exerted by a 500 N force on a 10 m² area.

Answer: $P = 50 \text{ Pa}$. Using $P = \frac{F}{A} = \frac{500}{10}$.

Flashcard 4: In what unit is fluid density typically measured?

Answer: kg/m³. Standard SI density unit.

Flashcard 5: Identify the term for pressure due to fluid motion.

Answer: Dynamic pressure. Pressure from fluid kinetic energy.

Flashcard 6: State the formula for calculating pressure.

Answer: $P = \frac{F}{A}$. Force divided by area.

Flashcard 7: What device measures the pressure difference between two points in a fluid?

Answer: Manometer. U-tube device for pressure difference.

Flashcard 8: Find the pressure exerted by a 500 N force on a 10 m² area.

Answer: $P = 50 \text{ Pa}$. Using $P = \frac{F}{A} = \frac{500}{10}$.

Flashcard 9: What is the definition of pressure in physics?

Answer: Pressure is the force exerted per unit area. Force distributed over area.

Flashcard 10: Which physical quantity is constant in an isobaric process?

Answer: Pressure. Constant pressure process definition.

Flashcard 11: How does pressure change with increasing fluid velocity?

Answer: Pressure decreases. Bernoulli's principle relationship.

Flashcard 12: How is pressure related to force and area?

Answer: Pressure is directly proportional to force and inversely proportional to area. From $P = \frac{F}{A}$ relationship.

Flashcard 13: Calculate the pressure at a depth of 5 m in water ($\rho = 1000 \text{ kg/m}^3$).

Answer: $P = 49,050 \text{ Pa}$. Using $P = \rho gh = 1000 \times 9.8 \times 5$.

Flashcard 14: What is the relationship between pressure and temperature in Gay-Lussac's Law?

Answer: Pressure is directly proportional to temperature. At constant volume and amount.

Flashcard 15: Identify the term for the pressure exerted by a stationary fluid.

Answer: Static pressure. Pressure from non-moving fluid.

Flashcard 16: What is the effect of a vacuum on pressure?

Answer: Pressure is reduced to near zero. Vacuum removes most gas molecules.

Flashcard 17: What is the term for pressure due to the weight of a fluid?

Answer: Hydrostatic pressure. Pressure from fluid weight.

Flashcard 18: What is absolute pressure?

Answer: Total pressure including atmospheric pressure. Gauge plus atmospheric pressure.

Flashcard 19: What is the relationship between depth and pressure in a fluid?

Answer: Pressure increases with depth. Hydrostatic pressure principle.

Flashcard 20: What happens to pressure if the area is halved and force remains constant?

Answer: Pressure doubles. Pressure inversely proportional to area.

Flashcard 21: What is the relationship between pressure and volume in Boyle's Law?

Answer: Pressure is inversely proportional to volume. Inverse relationship at constant temperature.

Flashcard 22: What does $h$ represent in the fluid pressure formula?

Answer: Height of the fluid column. Vertical distance from surface to point.

Flashcard 23: Which law relates pressure and volume of a gas at constant temperature?

Answer: Boyle's Law. Relates $P$ and $V$ inversely.

Flashcard 24: Identify the formula for pressure in a fluid at rest.

Answer: $P = \rho gh$. Hydrostatic pressure formula for fluids at rest.

Flashcard 25: What are the SI units of pressure?

Answer: Pascals (Pa). One Pa equals one $\text{N/m}^2$.

Flashcard 26: Which instrument is used to measure atmospheric pressure?

Answer: Barometer. Measures air pressure in atmosphere.

Flashcard 27: What is gauge pressure?

Answer: Pressure relative to atmospheric pressure. Pressure above atmospheric pressure.

Flashcard 28: Convert 1 atm to Pascals.

Answer: 1 atm = 101,325 Pa. Standard atmospheric pressure conversion.

Flashcard 29: What is atmospheric pressure at sea level in Pascals?

Answer: 101,325 Pa. Standard atmospheric pressure value.

Flashcard 30: Calculate the pressure at a depth of 10 m in water.

Answer: $P = 98,100 \text{ Pa}$. Using $P = \rho gh = 1000 \times 9.8 \times 10$.