Hertz (unit of frequency) notes

Hertz (unit of frequency) notes

Part 1 Basic info:
The hertz is the unit of frequency in the International System of Units (SI)
and is defined as one cycle per second.

Part 2 Information:
Light is electromagnetic radiation and has frequencies in the range of tens (infrared) of terahertzand thousands (ultraviolet) of terahertz.

Radio frequency radiation is usually measured in kilohertz (kHz), megahertz (MHz), or gigahertz (GHz).

The average adult human can hear sounds between 20 Hz and 16,000 Hz.

In computers, most central processing units (CPU) are labeled in terms of their clock rate expressed in megahertz or gigahertz.

gamma rays, can be measured in exahertz.


Part 3:
SI multiples for hertz (Hz):
-decahertz
-hectohertz
-Kilohertz
-Megahertz
-gigahertz
-terahertz
-petahertz
-exahertz
-zettahertz
-yottahertz

Submultiples:
decihertz
one cycle in 10 seconds
-decihertz
-centihertz
-millihertz
-microhertz
-nanohertz
-picohertz
-femtohertz
-attohertz
-zeptohertz
-yoctohertz



Part 4:
Hz   = hertz
kHz  = Kilohertz
MHz  = Megahertz
GHz  = gigahertz
THz  = terahertz
PHz  = petahertz
EHz  = exahertz
ZHz  = zettahertz
YHz  = yottahertz


Part 5:
1     Hz = 0.001 kHz
10    Hz = 0.01  kHz
100   Hz = 0.1   kHz
1000  Hz = 1     kHz
2     Hz = 0.002 kHz
2000  Hz = 2     kHz
25    Hz = 0.025 kHz
2500  Hz = 2.5   kHz
25000 Hz = 25    kHz

1     kHz = 0.001 MHz
1000  kHz = 1     MHz

1     MHz = 0.001 GHz
1000  MHz = 1     GHz

1     GHz = 0.001 THz
1000  GHz = 1     THz

1     THz = 0.001 PHz
1000  THz = 1     PHz

1     PHz = 0.001 EHz
1000  PHz = 1     EHz

1     EHz  = 0.001 ZHz
1000  EHz  = 1     ZHz

1     ZHz  = 0.001 YHz
1000  ZHz  = 1     YHz


part 5 extra:
DaHz = decahertz
hHz  = hectohertz

1  Hz = 0.1 DaHz
10 Hz = 1   DaHz

1  DaHz = 0.1 hHz
10 DaHz = 1   hHz

1  hHz = 0.1 kHz
10 hHz = 1   kHz



Part 6:
yHz  = yoctohertz
zHz  = zeptohertz
aHz  = attohertz
fHz  = femtohertz
pHz  = picohertz
nHz  = nanohertz
µHZ  = microhertz
mHz  = millihertz
cHZ  = centihertz
dHz  = decihertz


Part 7:
1    yHz = 0.001 zHz
1000 yHz = 1     zHz

1    zHz = 0.001 aHz
1000 zHz = 1     aHz

1    aHz = 0.001 fHz
1000 aHz = 1     fHz

1    fHz = 0.001 pHz
1000 fHz = 1     pHz

1    pHz = 0.001 nHz
1000 pHz = 1     nHz

1    nHz = 0.001 µHz
1000 nHz = 1     µHz

1    µHz = 0.001 mHz
1000 µHz = 1     mHz

1  mHz = 0.1 cHz
10 mHz = 1   cHz

1  cHz = 0.1 dHz
10 cHz = 1   dHz

1  dHz = 0.1 Hz
10 dHz = 1   Hz


Part 8:
Value    
10 to the 1st power  Hz = decahertz
10 to the 2nd power  Hz = hectohertz
10 to the 3rd power  Hz = kilohertz
10 to the 6th power  Hz = megahertz
10 to the 9th power  Hz = gigahertz
10 to the 12th power Hz = terahertz
10 to the 15th power Hz = petahertz
10 to the 18th power Hz = exahertz
10 to the 21th power Hz = zettahertz
10 to the 24th power Hz = yottahertz


Part 9:
8 Hz  is 8 cycles per second

8 kHz is 8000 cycles per second

8 GHz is 8 000 000 000 cycles per second

8 YHz is 8 000 000 000 000 000 000 000 000 cycles per second

Simple way of calculating 10 powers:
10 to the 3rd power is a 1 with 3 zero's behind it
10 to the 5th power is a 1 with 5 zero's behind it
10 to the 10th power is a 1 with 10 zero's behind it

For calculating cycles per second:
for example 8 EHz is 8 x 10 to the 18th power
which is 8 000 000 000 000 000 000 cycles per second

Part 10:
1 Hz is 1 cycle per second
1 Hz is 60 cycles per minute
1 Hz is 3600 cycles per hour
1 Hz is 86400 cycles per day

1 MHz is 1 000 000 cycles per second
1 MHz is 60 000 000 cycles per minute
1 MHz is 3 600 000 000 cycles per hour
1 MHz is 86 400 000 000 cycles per day

2 MHz is 2 000 000 cycles per second
-1 000 000 x2

2 MHz is 120 000 000 cycles per minute
-60 000 000 x2

2 MHz is 7 200 000 000 cycles per hour
-3 600 000 000 x2

2 MHz is 172 800 000 000 cycles per day
-86 400 000 000

4 MHz is 240 000 000 cycles per minute
-60 000 000 x4

1 THz is 1 000 000 000 000 cycles per second
1 THz is 60 000 000 000 000 cycles per minute
1 THz is 3 600 000 000 000 000 cycles per hour
1 THz is 86 400 000 000 000 000 cycles per day

Part 10 extra:
1 mHz(millihertz) makes 86.4 cycles per day
1 GHz(Gigahertz)  makes 86 400 000 000 000 cycles per day
1 EHz(Exahertz)   makes 86 400 000 000 000 000 000 000 cycles per day