g 6. Differentiate with example: (a) Fast and s low changes. (b) Endothermic and exothermic changes. (c) Periodic and Non-periodic changes.
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Answer:
The definition of slow is someone or something that is not quick or takes a long time. An example of slow is a snail
The definition of fast is someone or something that moves quickly, is not easily moved or is firmly shut. An example of fast is the cheetah's running speed
Endothermic reaction: A chemical reaction in which heat is absorbed is called endothermic reaction. It causes fall in temperature. e.g. (i) When nitrogen and oxygen together are heated to a temperature of about 3000°C, nitric oxide gas is formed.
a process or reaction that releases energy from the system to its surroundings, usually in the form of heat, but also in a form of light (e.g. a spark, flame, or flash), electricity
The definition of periodic is something that is recurring at regular intervals, or happens from time to time. An example of periodic is a person's birthday happening once each year
The motion which does not repeat itself after regular interval of time is called non-periodic motion. Examples : A footballer running on a field, application of brakes in a moving vehicle