AP Physics 2 Midterm Review

Front

What is the unit of pressure equivalent to a Pascal?

Back

1 Pascal (Pa) is equivalent to 1 N/m².

Front

What is the formula to calculate the voltage (V) across a capacitor?

Back

The voltage across a capacitor is given by the formula V = Q/C, where Q is the charge and C is the capacitance.

Front

If a system absorbs heat and does work, how do you calculate the change in internal energy?

Back

The change in internal energy (ΔU) can be calculated using the first law of thermodynamics: ΔU = Q - W, where Q is heat absorbed and W is work done by the system.

Front

In a PV graph, what does the area under the curve represent?

Back

The area under the PV curve represents the work done by or on the gas during the process.

Front

What happens to the average speed of gas molecules when the temperature increases?

Back

According to the Kinetic-Molecular Theory, the average speed of gas molecules increases with an increase in temperature.

Front

What is the relationship between capacitance (C), charge (Q), and voltage (V)?

Back

The relationship is given by the formula C = Q/V.

Front

What is the significance of the first law of thermodynamics?

Back

The first law of thermodynamics states that energy cannot be created or destroyed, only transformed from one form to another.

Front

What does it mean for a process to be isothermal?

Back

An isothermal process is one that occurs at a constant temperature.

Front

What is the definition of work done by a gas?

Back

Work done by a gas is defined as W = PΔV, where P is pressure and ΔV is the change in volume.

Front

What is the ideal gas law?

Back

The ideal gas law is expressed as PV = nRT, where P is pressure, V is volume, n is the number of moles, R is the ideal gas constant, and T is temperature.