What is energy? – Did you know?

The video tutorial explains the concept of energy and how it can be measured in calories. It defines a calorie as the amount of heat energy required to raise the temperature of a liter of water by 1°C.

What is energy and how can it be measured?

Explain the significance of measuring energy in calories.

Define one calorie in terms of heat energy.

How much does one calorie raise the temperature of water?

What is the relationship between calories and temperature change in water?