I WONDER - How Can We Measure Chemical Energy?

The video tutorial explains the units used to quantify chemical energy, focusing on calories and Joules. It defines a calorie as the energy needed to raise the temperature of 1 gram of water by 1 degree Celsius. The tutorial also discusses how food labels indicate the caloric content, representing the potential energy food can provide. An analogy is drawn between caloric content and car fuel efficiency, illustrating how far one can travel on a certain amount of fuel.

In what way is the caloric content of food similar to fuel efficiency in cars?

What is the significance of knowing the caloric content of food?