Calor y enérgia: conversiones de enérgia

The video explains the necessity of energy for humans and animals, highlighting how food is converted into usable energy. It introduces the concept of energy conversion, providing examples like chemical to thermal energy and water driving turbines. The video also covers everyday energy conversions in household appliances, such as electrical to thermal energy in roasters and mechanical energy in washing machines.

What is the primary reason humans and animals need to consume food?

• To improve taste

• To increase height

• To obtain energy

• To gain weight

What is energy conversion?

• The process of creating energy

• The process of storing energy

• The process of destroying energy

• The process of changing one type of energy to another

Which of the following is an example of chemical energy being converted?

• A fan spinning

• Rubbing a match to produce light

• Electricity powering a light bulb

• Water driving a turbine

In a washing machine, electrical energy is converted into what type of energy?

• Thermal energy

• Chemical energy

• Mechanical energy

• Electromagnetic energy

What type of energy conversion occurs in a light bulb?

• Electrical to electromagnetic

• Electrical to thermal

• Electrical to mechanical

• Electrical to chemical