Powers With Negative Exponent
Chapter Name : Exponent And Powers |
Sub Topic Code : 104_08_12_02_01 |
Topic Name : Powers With Negative Exponent |
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Sub Topic Name : Powers With Negative Exponent |
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Introduction
Arriving at 10-1 = 1/10
Pre-Requisites:
Exponents basics
Activity:
Find out what these mean- nanometer, millimeter and micrometer. Write their values against the meter
Real Life Question:
How can the magnetic constant be expressed in a simpler way, given it is a really small number?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Multiplicative Inverse | With whom you multiply so as to get the ultimate result as 1 |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|
Real life uses :
In most scientific expressions, the very small numbers are best represented through negative exponents.
Places to visit :
Museum
Practical examples around us
| Examples | Explainations |
|---|---|
| Dust particle | You obviously saw how small the dust particle is! If you were to measure it, its size would be expressed as a negative exponent |
What you learn in Theory:
10-2 = 1/102 = 1/100 , a-m = 1/am, *a-m is the multiplicative inverse of am
What you learn in Practice:
In most scientific/engineering applications, there are a lot of times when really small measurements are made like that of size of really small machinery parts (such as a tiny nut) which may be really important is better off expressed as negative exponents.