Physics Definition
AS Level Physics: Terms & Definitions:-
Measurement
Random errors are errors of measurements that result in a scatter of readings about a mean value.
Systematic errors are errors of measurement which occur according to some fixed patterns such that they consistently give out an over-estimation or under-estimation of the true value.
Accuracy is a measure of how close the results of an experiment agree with the true value.
Precision is a measure of how close the results of an experiment agree with each other.
Scalar quantity is one which has magnitude but no direction.
Vector is a quantity which has direction as well as magnitude.
Thermal Physics:
The internal energy is a function of state and the total microscopic kinetic and potential energies of the particles composing the system.
The specific latent heat of fusion, Lf , is defined as the amount of heat required per unit mass to change a substance from the solid phase to the liquid phase without any change in temperature
The specific latent heat of vaporization, Lv, is defined as the amount of heat required per unit mass to change a substance from the liquid phase to the vapor phase without any change in temperature.
First law of thermodynamics state that internal energy is a function of state and the increase in internal energy is equal to the sum of the heat supplied to system and work done on system.
Kinematics:
Speed is the rate of change of distance traveled with respect to time.
Velocity is the rate of change of its displacement with respect to time.
Acceleration of an object is the rate of change of its velocity with respect to time.
Forces And Dynamics:
Normal contact force is a force perpendicular to the surface experienced by a body when it is in physical contact with something else.
Hooke’s Law states that within the limit of proportionality, the extension produced in a material is directly proportional to the load applied.
The principle of moments states
Measurement
Random errors are errors of measurements that result in a scatter of readings about a mean value.
Systematic errors are errors of measurement which occur according to some fixed patterns such that they consistently give out an over-estimation or under-estimation of the true value.
Accuracy is a measure of how close the results of an experiment agree with the true value.
Precision is a measure of how close the results of an experiment agree with each other.
Scalar quantity is one which has magnitude but no direction.
Vector is a quantity which has direction as well as magnitude.
Thermal Physics:
The internal energy is a function of state and the total microscopic kinetic and potential energies of the particles composing the system.
The specific latent heat of fusion, Lf , is defined as the amount of heat required per unit mass to change a substance from the solid phase to the liquid phase without any change in temperature
The specific latent heat of vaporization, Lv, is defined as the amount of heat required per unit mass to change a substance from the liquid phase to the vapor phase without any change in temperature.
First law of thermodynamics state that internal energy is a function of state and the increase in internal energy is equal to the sum of the heat supplied to system and work done on system.
Kinematics:
Speed is the rate of change of distance traveled with respect to time.
Velocity is the rate of change of its displacement with respect to time.
Acceleration of an object is the rate of change of its velocity with respect to time.
Forces And Dynamics:
Normal contact force is a force perpendicular to the surface experienced by a body when it is in physical contact with something else.
Hooke’s Law states that within the limit of proportionality, the extension produced in a material is directly proportional to the load applied.
The principle of moments states