prefixes
by Sharath Nathan
# prefixes

## Derived quantity:some of the derived quantitite include
area,volume,density,speed,accelartion,force,pressure,work
and power

### 1)Area(length x breadth):m^2

### 2)Volume(length x width x height):m^3

### 3)Density(mass + volume):kg m^-3

### 4)Speed(distance + time):m s^-1

### 5)Accelaration(change in velocity +time):kg m s^-2

### 6)Pressure(force + area):kg m^-1 s^-2 (N m^-2)

### 7)Work(force x distance):kg m^2 s ^-2 (N m)

### 8)Power(work + time):kg m^-2 s^-3 (J s ^-1)

## Physical quantities

### -A quantity that can be
measured and consists
of a magnitude and unit.

### -The quantities can be classified into
two types:the Derived quantity and the
Base quantity.

### -Base quantity is
the known as the
fundemental
quantity as it is
independent of
other physical
quantities

### -Derived quantity is
defined by operations
based on other
physical quantities

## S.I
units:International
system of units

### Base quantity:there are seven
base quantities and they are
length,mass,time,electric
current,temperature,amount of
subtance and luminious intensity

### SI unit for base quantities a:

## Prefixes:simplify the writing of
very large or very small
quantities

### Some of the prefixes
include:nano,micro,milli,centi,deci,kilo,mega and giga

### N x 10 ^n where N is equal or more than 1 and 10 is
more than N and n is an integer

## Measurement of
Length and time

### The two types of errors are random errors and
systematic errors.

### Instruments used for measuring length:Measuring
tape,metre ruler,vernier calipers and micrometer
srew gauge

### Measuring tape: measures to anaccuracy of 0.1 cm

### Metre ruler: measures to an accuracy of 0.01 cm

### Vernier calipers: measures to anaccuracy of 0.01 cm

### Micrometer screw gauge: measures to an accuracy of 0.01 mm

### Instruments used for measuring time:pendulum clock/clock,watch
and stopwatch

## k

0.0 stars - reviews

1)Length(metre):m

3)Time(second):s

2)Mass(kilogram):kg

4)Electric current(ampere):A

5)Temperature(kelvin):K

6)Amount of subtance(mole):mol

7)Luminous intensity(candela):cd

1)Nano(10^-9): n

2)Micro(10^-6): ยต

3)Milli(10^-3):m

4)Centi(10^-2):c

5)Deci(10^-2):d

6)Kilo(10^3):k

7)Mega(10^6):M

8)Giga(10^9):G

Vernier calipers consists of inside jaws,outside jaws,vernier scale,main scale and depth bar

Micrometer screw gauge consists of anvil,spindle,sleeve,thimble and ratchet

The pendulum clock uses a pendulum and the oscillation of a pendulum refers to a single cycle of a cyclic or repeating motion.The time for 1 complete oscillation is referred to the period of oscillation.

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