REPASO EXAMEN ENERGY AND TECHNOLOGY

What is kinetic energy?

• a) Energy stored in an object due to its position
  

• b) Energy that an object has due to its motion
  

• c) Energy related to temperature
  

• d) Energy released by chemical reaction

Which of the following is an example of potential energy?

• A moving car

• A ball at the top of a hill

• A light bulb

What is potential energy?

• d) Energy associated with the temperature of an object

• a) Energy that an object possesses due to its motion
  

• b) Energy stored in an object due to its position
  

• c) Energy that is released during a nuclear reaction
  

What is thermal energy?

• Energy from the motion of particles

• Energy related to the temperature of an object

• Energy stored in food

• Energy that produces light

Which type of energy is stored in food and fuels?

• Electrical energy

• Chemical energy

• Thermal energy

• Kinetic energy

How is electrical energy transformed?

• Electrical energy is only used for heating.
• Electrical energy cannot be transformed into other forms.
• Electrical energy is transformed into other forms of energy such as mechanical, thermal, or light energy.
• Electrical energy is transformed into sound energy exclusively.

What is the main difference between renewable and non-renewable energy?

• Renewable energy is more expensive than non-renewable energy.
• Non-renewable energy sources are always cleaner than renewable sources.
• Renewable energy is sustainable, while non-renewable energy is finite.

Which of the following is a renewable energy source?

• Wind energy

• Coal

• Oil

• Biomass (keeping the balance against deforestation).

Why is solar energy considered a clean source of energy?

• Solar energy is only available during the night.
• Solar energy relies on fossil fuels for generation.
• Solar energy is clean because it generates power without harmful emissions or pollutants.
• Solar energy is expensive to produce and maintain.

How do hydroelectric power plants generate electricity?

• Using wind to turn turbines

• Using the heat of the Earth

• Using the movement of water

• Using chemical reactions in water