Energy Transfer and Resources in Physics

Flashcards for key vocabulary related to energy transfer and resources in physics.

Convection

The transfer of heat through a fluid (liquid or gas) by the movement of the fluid itself.

Conduction

The transfer of heat through a material without the movement of the material itself, typically through vibrating particles.

Radiation

The transfer of energy through space by electromagnetic waves, such as heat from the sun.

Efficiency

A measure of how much useful energy output is achieved compared to the total energy input; expressed as a percentage.

Energy Resources

Sources of energy used to produce power, which can be renewable (like solar and wind) or non-renewable (like fossil fuels and nuclear).

Work done

Energy transferred when a force is applied to move an object through a distance; calculated as ___ = force x distance.

Kinetic Energy

The energy an object possesses due to its motion, calculated as ___ = 1/2 mv² where m is mass and v is velocity.

Gravitational Potential Energy

The energy stored in an object as it is raised above the ground, calculated as ___ = mgh where m is mass, g is gravitational field strength, and h is height.

Power

The rate at which work is done or energy is transferred, calculated as ___ = work done/time taken.

Thermal Energy Transfer

The movement of heat energy from one object or area to another, occurring through conduction, convection, or radiation.