Measuring Food Energy

The video tutorial explains how to measure the energy content in food by burning it. The experiment involves burning peanuts and maize snacks to compare their energy content by observing the temperature increase in water. The results show that peanuts have more energy per gram than maize snacks. The video also discusses the concept of energy crops, such as sugar cane, which can be used to produce ethanol for fuel.

What is the primary purpose of burning food in this experiment?

• To test the durability of the beaker

• To measure the energy content

• To cook the food

• To create smoke

What was the initial temperature of the water before burning the peanuts?

• 22.0°C

• 20.6°C

• 18.5°C

• 25.0°C

How much did the temperature of the water increase after burning the peanuts?

• 15.0°C

• 19.6°C

• 22.5°C

• 17.0°C

What was the mass difference of the maize snacks after burning?

• 0.50 grams

• 0.95 grams

• 1.20 grams

• 0.73 grams

How does the energy content of peanuts compare to maize snacks?

• Peanuts have less energy

• Maize snacks have more energy

• Both have the same energy

• Peanuts have more energy

What is the broader implication of burning crops for energy?

• It is a way to improve soil quality

• It is a method to increase crop yield

• It reduces the nutritional value of food

• It can be used to produce ethanol for fuel

What is the role of ethanol produced from energy crops?

• To purify water

• To enhance plant growth

• To power cars

• To be used as a food additive