CL.6 BK.2-1-Conversion of Energy

What is kinetic energy?

• Kinetic energy is the energy associated with an object's temperature.

• Kinetic energy is the energy stored in an object at rest.

• Kinetic energy is the energy released during a chemical reaction.

• Kinetic energy is the energy of an object in motion.

Name one form of energy that can be converted to sound energy.

• Nuclear energy

• Mechanical energy

• Chemical energy

• Thermal energy

What type of energy does an electric fan convert?

• Electrical energy

• Chemical energy

• Thermal energy

• Mechanical energy

Why is it important to use energy-efficient appliances?

• They require more maintenance than regular appliances.

• They are more expensive to purchase.

• They are less effective at performing tasks.

• It is important to use energy-efficient appliances to save energy, reduce costs, and minimize environmental impact.

What happens to energy during conversion?

• Energy is created from nothing during conversion.

• Energy is lost completely during conversion.

• Energy is transformed from one form to another, but the total energy remains constant.

• Energy can only be converted into heat energy.

Can potential energy be converted to kinetic energy?

• Potential energy is always greater than kinetic energy.

• Kinetic energy can only be converted to potential energy.

• Yes, potential energy can be converted to kinetic energy.

• No, potential energy cannot be converted to kinetic energy.

Give an example of chemical energy in everyday life.

• Gasoline in a car engine.

• Batteries in a remote control.

• Electricity in a power plant.

• Food in a refrigerator.

What is heat energy?

• Heat energy is the energy stored in chemical bonds.

• Heat energy is the energy transferred due to temperature differences.

• Heat energy is the energy produced by friction.

• Heat energy is the energy associated with the motion of electrons.

How is light energy used in our daily lives?

• Light energy is only useful for heating water.

• Light energy is used for illumination, solar energy generation, photosynthesis, and in various technologies like screens and cameras.

• Light energy is primarily used for cooking food.

• Light energy is mainly used for storing data in hard drives.

What is one way to save energy at home?

• Switch to LED light bulbs

• Turn off the refrigerator at night

• Keep all lights on during the day

• Use incandescent light bulbs