Newton’s law of cooling states that the rate of heat loss of a body is proportional to the difference in temperatures between the body and its surroundings. Mathematically, it can be expressed as: dQ/dt = -kA(T – Ts) where: This law is applicable when the temperature difference between the body and its surroundings is not…
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…
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,…
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 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…
Wave motion refers to the propagation of disturbances or oscillations through a medium. A plane wave is a type of wave that propagates uniformly in one direction and has a constant frequency, wavelength, and amplitude. In a plane wave, the wavefronts are planes perpendicular to the direction of propagation, and the oscillations of the medium…
Mechanics is the branch of physics that deals with the motion of objects and the forces that cause the motion. It has many applications in our daily lives and in various fields of engineering. Here are some examples of the applications of mechanics: Overall, mechanics is a fundamental concept in many fields of science and…
Stoke’s law is a scientific principle that describes the behavior of small particles that are suspended in a fluid medium. The law states that the force of viscous drag on a spherical particle in a fluid is directly proportional to the velocity of the particle and the viscosity of the fluid and inversely proportional to…
The modulus of rigidity, also known as shear modulus, is a material property that describes its resistance to shearing deformations. It is defined as the ratio of the shearing stress to the shearing strain within the proportional limit of the material. The modulus of rigidity is denoted by the symbol G and is measured in…
Mechanics drops can refer to a few different things depending on context, but generally it refers to a type of liquid used in mechanical applications to reduce friction, prevent wear, and provide lubrication. Mechanics drops can include things like motor oil, hydraulic fluid, and gear lubricants, which are used in engines, transmissions, and other mechanical…
