GCSE Physics - Energy Stores, Transferring Energy & Work Done #1

The video tutorial explains that energy is never created or destroyed but transferred between forms and objects. It covers various energy stores like thermal, kinetic, and potential energy, and how energy is transferred mechanically, electrically, by heating, or radiation. The concept of systems, both open and closed, is discussed, highlighting how energy is exchanged. Practical examples, such as a kettle and a train, illustrate these concepts. The video also differentiates between mechanical and electrical work done.

Which type of energy is associated with the movement of an object?

• Gravitational potential energy

• Chemical energy

• Kinetic energy

• Thermal energy

What is the main characteristic of a closed system in terms of energy transfer?

• It can only lose energy to the outside world.

• Energy can enter but not leave the system.

• Neither matter nor energy can enter or leave the system.

• It can exchange energy with the outside world.

How is energy transferred when a kettle boils water?

• Through chemical reactions

• By radiation

• Electrically

• Mechanically

What type of work is done when a force is used to move an object?

• Mechanical work

• Thermal work

• Electrical work

• Nuclear work

In the context of energy transfer, what does friction do when a train applies brakes?

• Transfers energy to the train's chemical energy store

• Transfers energy to the train's kinetic energy store

• Increases the train's speed

• Transfers energy to the thermal energy store of the surroundings