a) Will a grandfather clock, accurate at 20 degrees C, run fast or slow on a hot day (30 degrees C)? Explain. Assume that the clock utilizes a pendulum supported on a long, thin brass rod.
b) When a gas is rapidly compressed (say, by pushing down a piston) its temperature increase, Describe. When a gas expands against a piston, it cools. Describe these changes in temperature using the kinetic theory, in particular nothing what occurs to the momentum of molecules when they strike the moving piston.
c) A flat bi-metallic strip consists of alluminium riveted to a strip of iron. When heated, the strip will bend. Which metal will be on the outside of the curve? Why?