Question

1. Energy is expended when a force moves matter across a distance. True/False

2. The conservation of mass-energy and the first law of thermodynamics are synonymous. True/False

3. Temperature and thermal energy are synonymous terms. True/False

4. On the Kelvin scale, temperatures are expressed as positive values only. True/False

5. The amount of heat transfer required to change the temperature of one gram of water one degree Celsius is also known as a calorie. True/False

Answer 1

1. True
2. True
3. False
4. True
5. True

3. Heat can be thought of as the movement of particles (molecules etc). The faster they move the hotter things are. Energy of movement is called kinetic energy. Temperature is a measure of the average kinetic energy of the particles, while thermal energy is the total kinetic energy of the particles.