latent heat

Latent heat refers to the amount of energy that is absorbed or released by a substance during a change in its state or phase, such as melting, boiling, or condensation. This energy is used to either break or form the intermolecular bonds between the molecules of the substance, without causing a temperature change. The amount…

Calorimetry

Calorimetry is the scientific measurement of heat transfer in a physical or chemical process. It involves the determination of the amount of heat absorbed or released by a substance or system during a physical or chemical change. Calorimetry is an important tool in various fields of science, including chemistry, physics, and engineering. The basic principle…

Thermal expansion of solids, liquids and gases

Thermal expansion is a property exhibited by all three states of matter – solids, liquids, and gases – and is caused by the increased kinetic energy of particles as they absorb heat. However, the extent of thermal expansion varies significantly between the different states of matter. Solids: In solids, the particles are tightly packed and…

Doppler effect (in sound)

The Doppler effect is the change in frequency or wavelength of a sound wave in relation to an observer who is moving relative to the source of the sound. This effect is named after the Austrian physicist Christian Doppler, who first described the phenomenon in 1842. When a sound source is moving towards an observer,…

Speed of sound in gases

The speed of sound in gases depends on the temperature, pressure, and the molecular weight of the gas. In general, the speed of sound in gases increases with an increase in temperature and decreases with a decrease in pressure. The molecular weight of the gas also affects the speed of sound, with heavier gases having…

Beats

“Beats” can have multiple meanings depending on the context. Here are a few possible explanations: What is Beats Beats can refer to the rhythmic or musical pattern that forms the foundation of a song or composition. A beat is typically created by combining different sounds, such as drums, bass, and other instruments, in a specific…

Vibration of strings

Vibration of strings is a physical phenomenon that occurs when a string, such as that of a musical instrument, is plucked or struck. When a string is plucked, it vibrates back and forth, causing sound waves to be produced. The frequency and amplitude of the vibration determine the pitch and volume of the sound produced.…

Progressive and Stationary waves

Progressive waves and stationary waves are two types of waves that are commonly found in physics. Progressive waves are waves that travel through a medium, such as sound waves or ocean waves. As the wave moves through the medium, the individual particles in the medium oscillate back and forth in the direction of the wave.…

Superposition of waves

Superposition of waves is a phenomenon that occurs when two or more waves meet at the same point in space and time. When this happens, the displacement of the medium at that point is equal to the sum of the individual displacements of each wave. This means that the waves add up to form a…