Energy is expended when a force moves matter across a distance.

true
false

the conservation of mass-energy and the first law of thermodynamics are synonymous.

true
false

temperature and thermal energy are synonymous terms.

true
false

on the kelvin scale, temperatures are expressed as positive values only.

true
false

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

1. This is true. Specifically, this energy is in the form of work. This is because  we know that the formula of work is force times distance. 

2. This is true. Basically, the first law of thermodynamics is the conservation of mass, and consequently, energy. It states that the total energy of an isolated system is constant.

3. This is false. They are not synonymous because temperature is measured in terms of either °C, °F or K. Thermal energy is measured in either joules, calories, or British thermal units. They are related, but not synonymous.

4. This is true. The Kelvin scale is called the absolute temperature scale, because all temperature values are positive. This is don by finding the minimum temperature which is 0 K or equivalent to -273°C. In fact, this temperature is only ideal, and impossible to achieve.

5. This is false. Calorie is a unit of energy. But the transfer of amount of energy to raise the temperature by 1°C of 1 g of water is called the specific heat capacity of water.

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