Fluids

It initially increases then decreases.

It decreases.

It remains constant.

It increases.

It decreases by a factor of four.

It increases by a factor of four.

It doubles.

It remains unchanged.

Entropy increases because molecules have greater freedom of movement in liquid form than in solid form.

Entropy decreases as molecular motion becomes more restricted in liquid form compared to solid form.

Entropy remains unchanged as phase changes are isentropic processes by definition.

Entropy initially decreases and then increases as molecules adjust to their new phase state.

It remains unchanged.

It halves.

It quadruples.

It doubles.

A metal rod becoming hot at one end after being held over a flame at its other end.

Wind transferring warmth away from ocean water during an evening breeze alongshore

The glow emitted by incandescent light bulbs that illuminates surrounding areas without heating them much directly

Heat rising above pavement warmed by sunlight during midday hours.

Entropy generally increases because higher temperatures result in increased molecular randomness.

Entropy first decreases, then increases since temperature has varying effects on molecular activity depending on the substance.

Entropy generally decreases because molecules lose kinetic energy at higher temperatures.

Entropy remains unchanged since temperature change does not affect molecular order.

Hertz (Hz)

Kilogram (kg)

Cubic meter (m³)

Meter per second squared (m/s²)

Pressure (P).

Speed (v).

Velocity (v).

Mass flow rate ($\rho A v$).

Depth of the fluid

Weight of the object itself

Weight of displaced fluid

Volume of the object itself

Twice the voltage drop across the capacitor

Half of the voltage of the power supply

0 V

Equal to the voltage of the power supply