a. Choose an example of thermal energy in your life and describe it in full physical terms:

1. what is the significance of this thermal energy to you?
2. what object is doing work or having work done because of this thermal energy?
3. what is this object's change in temperature in kelvin and change in velocity in meters per second because of the thermal energy?

b. You push a 25 kg box across the floor accelerating it from rest to 2 m/s. How much workin joules did you do on the box?

c. In a few sentences, describe how James Joule's experiments demonstrate that heat is a form of energy.

d. In a few sentences, describe the experiments and concepts that force us to adopt an absolute scale of temperature where zero means no energy.

e. If a 10-kg weight attached to a paddle wheel falls from rest to 2 m/s and the work of the falling weight is transferred to the water with nearly no loss to other forms of energy, how many kelvin of temperature does the work done by the fall raise 1.5 kg of water?