RELATIVE MOTION

When we define motion as a change of position, it is important to note that that there must be a point or frame of reference usually at rest. Therefore, every measurement should be made with respect to such points or frames of reference. Relative motion is simply the

MOTION

 

When a body changes its position with respect to its surroundings, then we can say its moving. Therefore, motion simply means

Dimensions of Physical Quantities

 

Dimension is used in science to deduce the nature of a physical quantity.

The dimension of the fundamental quantities are shown in the diagram above. 

Remember that the combination of two or more fundamental quantities gives us a derived quantity. Therefore the dimension of derived quantities will also be gotten from

Measurement of Physical Quantities

 

 

As physical quantities are very important in physics, so also are their measurements. There are special instruments designed specifically for the measurement of each physical quantity.

We will be looking at the measuring instruments for the measurement of some quantities - length, mass and

Physical Quantities

Physical Quantities

In physics, quantities are properties or values that can be measured. Measurement is very important in science as it is usually a means of communication by