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(Notes) Physics: Terms and definition
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Terms and definition
| Length
|
Lenth
measures distance between two points. |
L |
| Mass
|
Mass of an object measures the amount of matter in the object. | M |
| Volume
|
Volume is the amount of space occupied by an object | L 3 |
| Temperature
|
||
| Pressure |
Pressure is defined as force per unit area |
M L -1 T -2 |
| Force |
Force
is a phenomenon or action that causes a body of mass M to accelerate.
Force can be defined as rate of change of momentum |
MLT-2 |
| Power |
It is amount of work done per unit time. It is scalar quantity | M L 2 T -3 |
| Momentum |
Momentum of an object is product of its mass and velocity. It is vector
quantity |
M L T -1 |
| Capacitance |
A capacitor is used for storing charge and energy. Capacitance is a measure of the amount of electric charge stored for a given electric potential. | T 2 Q 2 M -1 L -2 |
| Gravity |
Gravity is universal force in nature. It is a force of attraction between any two matters. | |
| Magnetic
field |
Magnetic field is a vector field in a space that exert force on a moving electic charge. Init of magnetic field strength is Tesla. One Tesla is a strength measured as force (Newton) on a wire of unit length (meter) with unit electric current(Ampere). Nm-1A-1 | MT -1C-1 |
| Moment of
inertia |
Moment of Intertia of a body is the intertia of a rotating body with respect to the axis of rotation. | ML2 |
| Moment of
force |
|
ML2T-2 |
| Work |
|
ML2T-2 |
| Torque |
|
ML2T-2 |
| angular
momentum |
|
ML2T-1 |
| Planck's
constant |
|
ML2T-1 |
| Impulse |
|
MLT-1 |
| Capillary
Action |
Capillary action happens when the adhesion to the walls is stronger than the cohesive forces between the liquid molecules. | |
| Surface
Tension |
The cohesive forces between liquid molecules cause the phenomenon known as surface tension. It is the attractive property of the surface of a liquid. | MT-2 |
| Kinamatic
Surface Tension |
|
L3T-2 |
| Viscosity |
|
ML-1T-1 |
| Kinematic
Viscosity |
|
L2T-1 |
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