Physics Chapter: Waves and Energy Sources

Wind and hydroelectricity are energy sources that can be naturally replenished, making them sustainable.

Both wind and hydro power produce electricity without releasing harmful gases into the atmosphere.

The distance between two consecutive peaks or troughs of a wave.

Wind turbines typically generate more electricity compared to hydroelectric plants of similar size.

The number of waves that pass a given point per unit time, usually measured in Hertz (Hz).

Hydroelectric power plants are generally more consistent in producing energy, unlike wind turbines which depend on wind speed.

Both wind and hydro power require significant initial investments, leading to high setup costs.

The direction a wave travels. It can be horizontal, vertical, or any other direction.

The highest point on a wave.

The lowest point on a wave.

Sound waves that have a frequency higher than the human ear can hear.

The angle at which a sound wave hits a surface is the same as the angle at which it bounces off.

The change in direction of a wave when it travels from one medium to another.

Sound waves in solids are converted to vibrations that travel through the solid.

The range of frequencies that humans can hear.