Geothermal Energy and Material Properties

Front

Geothermal energy

Back

Geothermal energy is heat energy extracted from beneath the Earth's surface, often used to generate electricity. It is a renewable energy source.

Front

Advantage of using geothermal energy for electricity

Back

It produces low emissions and is renewable, providing a continuous supply of power.

Front

Physical property of a material

Back

A physical property is a measurable characteristic that does not involve changing the material’s chemical identity, such as density or melting point.

Front

Mechanical property of a material

Back

A mechanical property describes how a material responds to mechanical forces or deformation, such as strength or elasticity.

Front

Residual Current Device (RCD) and electric shock risk

Back

An RCD monitors the current and quickly cuts the circuit if it detects an imbalance, reducing injury risk.

Front

Difference between torque and moment of a force

Back

Torque usually means a twisting force about a rotational axis, while a moment is the product of a force and its perpendicular distance from a pivot.

Front

Max torque T a shaft can transmit

Back

Front

Back

Front

B–H curve for iron vs steel

Back

Iron has a steeper initial slope and reaches high flux density at lower field strength than steel.

Front

Energy to heat and melt a 25 kg aluminum block from 20°C to its melting point

Back