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.

What are the common units used to measure chemical energy?

• Calories and Joules

• Pounds and Ounces

• Meters and Liters

• Watts and Volts

Which of the following is NOT a unit of chemical energy?

• Joules

• Watts

• Calories

• Liters

How is one calorie defined in terms of water temperature?

• The energy needed to evaporate 1 gram of water

• The energy needed to raise the temperature of 1 gram of water by 1 degree Celsius

• The energy needed to freeze 1 gram of water

• The energy needed to boil 1 gram of water

What does the caloric content on food labels represent?

• The amount of sugar in the food

• The amount of fat in the food

• The potential energy the food can provide

• The weight of the food

How is the concept of caloric content similar to fuel efficiency in cars?

• Both indicate the color of the car or food

• Both measure the speed of travel

• Both indicate how far you can travel on a certain amount of fuel or food

• Both measure the weight of the car or food