The Law of Conservation of Energy

What does the law of conservation of energy state?

• Energy can be created and destroyed
• Energy cannot be created or destroyed
• Energy can only be created
• Energy can only be destroyed

Which of the following is an example of kinetic energy?

• A book on a shelf
• A ball rolling down a hill
• A stored battery
• A campfire

What is potential energy?

• Energy of motion
• Energy stored due to position
• Energy released in chemical reactions
• Energy from the sun

What type of energy is stored in chemical bonds?

• Kinetic energy
• Thermal energy
• Chemical energy
• Electrical energy

What happens to energy when a bomb explodes?

• Energy is created
• Energy is destroyed
• Energy is transformed
• Energy is lost

Which unit is used to measure energy?

• Watt
• Joule
• Newton
• Volt

What type of energy do household appliances typically use?

• Kinetic energy
• Potential energy
• Electrical energy
• Thermal energy

When you rub your hands together, what type of energy are you creating?

• Kinetic energy
• Potential energy
• Thermal energy
• Chemical energy

What is an example of thermal energy?

• A moving car
• A hot cup of coffee
• A stretched rubber band
• A battery

How does a toaster work in terms of energy transformation?

• It converts thermal energy to electrical energy
• It converts electrical energy to thermal energy
• It converts kinetic energy to potential energy
• It converts chemical energy to kinetic energy