Measurement
Measurement, the process of associating numbers with physical quantities and phenomena.
Force and Motion
A force is an influence that can change the motion of an object. A force can cause an object with mass to change its velocity.
Simple Machine
Any of several devices with few or no moving parts that are used to modify motion and the magnitude of a force in order to perform work.
Pressure
Pressure is defined to be the amount of force exerted per area.
Work Energy and Power
Power is the rate of doing work or the rate of using energy, which are numerically the same.
Heat
Heat is a form of energy that can be converted into work.
Light
Light is the form of energy whiich gives sensation of sight.
Sound
Sound is the form of energy which gives sensation of hearing.
Magnetism
Magnetism is the force exerted by magnet s when they attract or repel each other.
Electricity
The meaning of Electricity is a fundamental form of energy observable in positive and negative forms that occurs.
Matter
The substance or substances of which any physical object consists or is composed: the matter of which the earth is made.
Metal and Non-Metal
Metals are good conductors of heat and electricity and non metals are insulators.