Measuring Energy Content of Food Through Scientific Experimentation

In this video, Hazel and Amelia demonstrate how to measure the energy content of food using a Watsit. They guide viewers through the preparation, execution, and calculation phases of the experiment. The process involves measuring the mass of the Watsit, heating it to transfer energy to water, and calculating the energy released using a specific formula. The final energy content is determined to be 4,025 joules per gram of Watsit.

Who is Amelia in the context of the experiment?

• A science technician

• A science teacher

• A student

• A laboratory assistant

What is the first step in measuring the energy content of the food?

• Lighting the food sample

• Inserting a thermometer

• Measuring the mass of the food

• Adding water to a boiling tube

What is the initial temperature of the water in the experiment?

• 25 degrees Celsius

• 20 degrees Celsius

• 30 degrees Celsius

• 22 degrees Celsius

Why is a mounted needle used in the experiment?

• To calibrate the thermometer

• To measure the mass of the food

• To keep the burning food away from hands

• To stir the water

What is the final temperature of the water after the experiment?

• 50 degrees Celsius

• 45 degrees Celsius

• 42 degrees Celsius

• 40 degrees Celsius

What is the specific heat capacity of water used in the calculation?

• 4.5

• 4.2

• 4.0

• 3.8

How do you calculate the change in temperature for the experiment?

• Subtract initial temperature from final temperature

• Add initial and final temperatures

• Multiply initial temperature by final temperature

• Divide final temperature by initial temperature

What is the mass of water used in the experiment?

• 20 grams

• 25 grams

• 15 grams

• 10 grams

How is the energy content per gram of food calculated?

• By adding the energy to the mass of the food

• By dividing the energy by the mass of the food

• By multiplying the energy by the mass of the food

• By subtracting the mass of the food from the energy

What is the energy content per gram of the Watsit?

• 3,500 joules per gram

• 4,025 joules per gram

• 4,500 joules per gram

• 5,000 joules per gram