Understanding Chemical Energy and Its Applications

The video explains that atoms form bonds containing chemical energy, which is released during combustion, such as burning wood or fuel. This energy is also present in food, providing energy for physical activities like kayaking or snowboarding.

What is the energy called that is stored within the bonds holding atoms together?

• Mechanical energy

• Nuclear energy

• Chemical energy

• Thermal energy

When wood is burned, what type of energy is primarily released?

• Electrical energy

• Heat energy

• Kinetic energy

• Nuclear energy

Which of the following fuels contain chemical energy that can propel machinery when combusted?

• Sand

• Air

• Water

• Gasoline

How do our bodies gain chemical energy?

• By breathing

• By exercising

• By eating food

• By sleeping

What happens to the chemical energy in food when we engage in physical activities like kayaking?

• It remains unchanged

• It is lost as waste

• It is converted into mechanical energy

• It is stored for later use