Which term refers to the system of signaling using dots and dashes to convey letters?

Study for the ACAP 4th Grade Science Test. Learn with interactive quizzes and multiple-choice questions, complete with hints and explanations. Get ready to excel!

Multiple Choice

Which term refers to the system of signaling using dots and dashes to convey letters?

Explanation:
Morse code is a signaling system that uses dots and dashes to represent letters. It was created for long-distance communication, like with the telegraph, so messages could be sent quickly even without spoken words. Each letter and number has a unique pattern of short signals (dots) and long signals (dashes), which lets readers decode the message easily. Refract means bending of light, which isn’t about sending messages. Decipher is the act of interpreting a coded message, not the method used to encode it. Transfer energy describes moving energy from one place to another, not encoding letters for communication.

Morse code is a signaling system that uses dots and dashes to represent letters. It was created for long-distance communication, like with the telegraph, so messages could be sent quickly even without spoken words. Each letter and number has a unique pattern of short signals (dots) and long signals (dashes), which lets readers decode the message easily. Refract means bending of light, which isn’t about sending messages. Decipher is the act of interpreting a coded message, not the method used to encode it. Transfer energy describes moving energy from one place to another, not encoding letters for communication.

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