Thermal Physics

Question 1

Define internal energy

Answer 1

Sum of potential and kinetic energy in the particles

Question 2

Define expansion in solids

Answer 2

Cold solid -> Hot solid

Question 3

What are some examples of the consequences of thermal expansion?

Answer 3

Railway lines buckle
Cement paths and buildings crack unless there are expansion joints

Question 4

Define specific heat capacity

Answer 4

Energy required per unit mass per unit temperature

Question 5

What is the formula for specific heat capacity?

Answer 5

Change in energy = mass x specific heat capacity x change in temperature
Q = m c T