Thermodynamic finals revision

What is the equation for heat energy transfer when heating or cooling without changing state?

Q = mcΔT

What does the 'c' in the equation Q = mcΔT represent?

Specific Heat Capacity, which measures a material's resistance to temperature change.

What is the formula for latent heat involved in changing states?

Q = mL, where L is the Latent Heat.

What is the coefficient of linear expansion represented by in the equation ΔL = αLΔT?

α (alpha), which indicates how much a material expands per degree of temperature change.

How is work defined in physics in relation to changes in volume?

W = PΔV, where W is work done, P is pressure, and ΔV is change in volume.

What happens to angular momentum (L) when there is no external torque acting on a system?

The total amount of spin (total L) remains constant.

What is terminal velocity?

The constant speed at which the upward air resistance force equals the downward gravitational force, resulting in zero net force.

What does the equation P = kA(dT/dx) represent in thermal physics?

It represents thermal conductivity, indicating the rate of heat flow through a material.

What happens to the angular velocity (ω) of a skater when they pull their arms in?

The angular velocity increases to conserve angular momentum as the moment of inertia (I) decreases.

What is the significance of the term L in angular momentum?

L represents the amount of spin that an object possesses, determined by its moment of inertia and angular velocity.