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## Morse Code WorksheetAlso available as an Adobe PDF file.

Every letter or symbol that you can use to write a message has a code written in dots and dashes that can be used when writing or speaking may not be practical. This code can be sent audibly or visually. With practice it is possible to send and receive Morse code at very fast speeds.

For this exercise it is not necessary to memorize all the letters and symbols used in Morse code, but to understand how they are used. This worksheet is designed to help you understand how to send and receive Morse code. If you want to learn Morse code and be proficient in it's use try visiting TerraX.org's web site at http://TerraX.org and playing the Morse code game.

### Part One

#### Instructions:

To fill in the blanks below use the following words: Morse code, space, dot, dash, static, and full stop.

1. ________________The length of one of these is equal to the length of a dot.
2. ________________This can make voice messages, sent over a radio, hard to understand.
3. ________________A system of "dots" and "dashes" used to communicate when voice or other systems cannot be used.
4. ________________The length of this sound is three times as long as the length of a dot.
5. ________________This is used to mean the end of an idea. It can also be used instead of a period.
6. ________________The length of this sound is short, three times it's length makes a dash.

### Morse Code Table

Letter Morse Code   Letter Morse Code   Letter Morse Code
A .-   J .---   S ...
B -...   K -.-   T -
C -.-.   L .-..   U ..-
D -..   M --   V ...-
E .   N -.   W .--
F ..-.   O ---   X -..-
G --.   P .--.   Y -.--
H ....   Q --.-   Z --..
I ..   R .-.   . .-.-.-

### Part Two

#### Instructions:

Use the table of Morse code translations to fill in either the dots and dashes or the letters that are missing from the problems below. Example: The correct Morse code translation for Cat is -.-. .- -

Word(s) Morse Code   Word(s) Morse Code
Cat -.-. .- -     ... - --- .--.
.... .- -   Dart
Buzz     Full stop
--. . -     -.- -. --- - - -.--
Jump       --.- ..- .. --..
1.
Wave       -..-   .-. .- -.--

### Part Three

#### Instructions:

Match the messages with the Morse code. Write the letter of the matching code on the blank by the message that it is. Example: The Morse code translation of 1 is e.

 __e_ 1 This is an example. a) ... --- ... ____ 2 SOS b) -.-. .- - ...   .- -. -..   -.- .. - - . -. ...   .- .-. .   ..-. ..- -. .-.-.- ____ 3 This is cool c) - .... .   ... .... .- .-. -.- ...   .-- . .-. .   . ...- . .-. -.-- .-- .... . .-. . ____ 4 Hi. d) ..   .-- . -. -   ..-. --- .-.   .-   ... .-- .. -- .-.-.- ____ 5 The boat is sinking. e) - .... .. ...   .. ...   .- -.   . -..- .- -- .--. .-.. ..-.. .-.-.- ____ 6 Boat f) -... ..- -   ..   --- ..- -   ... .-- .- --   - .... . -- .-.-.- ____ 7 Ship g) .- -.-.   -.. -.-. ____ 8 Automobile h) --.. . -... .-. .- ____ 9 Cats and kittens are fun. i) .... .. .-.-.- ____ 10 They can run fast. j) .--- ..- ... -   - .... .. -. -.-   --.- ..- .. -.-. -.- ____ 11 I went for a swim. k) --. --- --- -..   .-. --- -.-. -.-   .- -. -..   .-. --- .-.. .-.. ____ 12 The sharks were everywhere l) - .... .   -... --- .- -   .. ...   ... .. -. -.- .. -. --. .-.-.- ____ 13 but I out swam them. m) - .... . -.--   -.-. .- -.   .-. ..- -.   ..-. .- ... - .-.-.- ____ 14 They could not catch me n) -... --- .- - ____ 15 AC DC o) -..-   .-. .- -.-- ...   .- .-. .   -. --- -   -.-. --- --- .-.. .-.-.- ____ 16 Good Rock and roll p) - .... .. ...   .. ...   -.-. --- --- .-.. ____ 17 Zebra q) ... ..- -... -- .- .-. .. -. .   .. -.   -- -.--   .--. --- --- .-.. ____ 18 Submarine in my pool r) ... .... .. .--. ____ 19 X rays are not cool. s) .- ..- - --- -- --- -... .. .-.. . ____ 20 Just think quick t) - .... . -.--   -.-. --- ..- .-.. -..   -. --- -   -.-. .- - -.-. ....   -- .

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