Energy Transfer and Storage Concepts

This video tutorial explores various types of energy stores, including chemical, thermal, kinetic, gravitational potential, and elastic potential energy. It explains how energy can be transferred between these stores and highlights the principle of energy conservation, stating that energy cannot be created or destroyed. The video also discusses wasted energy, particularly in the form of heat, and provides examples of energy transfer methods such as electrical, sound, and light. The tutorial concludes with a call to action for further learning resources.

What happens to the gravitational potential energy of an object as it is lifted higher above the ground?

• It decreases

• It converts to kinetic energy

• It remains the same

• It increases

Which type of energy is stored in food and fuels?

• Gravitational potential energy

• Thermal energy

• Chemical energy

• Kinetic energy

What type of energy is stored in hot objects?

• Elastic potential energy

• Thermal energy

• Kinetic energy

• Chemical energy

Which type of energy is stored in moving objects?

• Gravitational potential energy

• Kinetic energy

• Chemical energy

• Thermal energy

Which type of energy is stored in a compressed spring?

• Kinetic energy

• Chemical energy

• Thermal energy

• Elastic potential energy

What does the law of conservation of energy state?

• Energy can be created and destroyed

• Total energy before and after a transfer is the same

• Energy can only be transferred to thermal energy

• Energy is always wasted

What happens to most wasted energy?

• It disappears

• It is stored in the thermal energy store of the surroundings

• It is converted to kinetic energy

• It is stored in the chemical energy store

What type of energy transfer is shown by an infrared camera detecting heat from a laptop?

• Electrical

• Thermal

• Sound

• Light

Which type of energy transfer is involved when heating water on a stove?

• Thermal

• Sound

• Electrical

• Light

Which of the following is NOT a way of transferring energy?

• Magnetic

• Light

• Sound

• Electrical