Using codes - caesar cipher & morse code

In computers alphabets are encoded and decoded into

• binary codes

• decimal numbers

• cipher codes

Caesar cipher is a substitute code

• False

• True

Roman used the caesar cipher by shifting letters _____ steps along the alphabet.

• 8

• 5

• 3

• 4

The key to the code is the number of letters along the alphabets

• True

• False

Find the word.. KSSH .....shift the key to 4 steps

• SAVE

• PEEL

• GOOD

• MEET

Morse code works with pulses through __________ to another machine.

• Vibration

• Sound

• Electricity

• Light

The Morse code’s letters and numbers are a sequence of short and long pulses which would be thought of as __________

• Slashes and apostrophes

• Dots and commas

• Dots and dashes

• Semicolons and dots

Who invented Morse code

• Spehen Morse

• Morse Codie

• Samuel Finley Morse