Exam 14: Physics Concepts and Formulas

Speed 'v' with which wave travels through a medium is given by

Stationary waves are also called

Substances that elongate considerably and undergo plastic deformation before they break are known as

When a gas or a liquid is subjected to an increased pressure, the substance contracts, the bulk strain is defined as

"Upthrust = Weight of the liquid displaced" is known as

Einstein's mass-energy relationship states that if the mass decreases by Δm, the energy released ΔE is given by {{}}

In elastic collisions,

Hooke's law states that

When the work done in moving a particle round a closed loop in a field is zero, the forces in the field are called

Velocity of escape is equal to

Assuming uniform density of the core, the acceleration due to gravity below the Earth's surface is

Force that acts on a mass of 1 g and gives it an acceleration of 1 cm s ^-2 is defined as {{}}

In order to slip one surface over another, maximum frictional force has to be overcome, this maximum frictional force between the two surfaces is also known as

Dimensions of strain are {{}}

Period of simple harmonic motion of a spiral spring or elastic thread is given by

Van der Waals derived an expression for the 'pressure defect', if the observed pressure is denoted as 'p' and volume is denoted as 'V', the gas pressure in the bulk of the gas is equal to:

Velocity of sound waves through any material depends on

Due to energy dissipation by viscous forces in air, if simple harmonic variations of a pendulum die away after some time, then oscillation is said to be:

An object moving in a circle of radius 'r' with a constant speed 'v' has a constant acceleration towards the center equal to

Young's modulus is defined as