Intro to Waves
What is a wave?
Waves are a repeated pattern that travels through matter and space.
What is the highest point of a wave called?
Crest.
How can waves be used to transfer information?
Through sound.
Waving a flag.
Smoke signal.
What is code?
A set of signals that represent letters or words for sending messages.
What is energy?
Energy is the ability to do work.
What are the 3 different types of waves we studied in class?
Sound waves, waves on a string and water waves.
What's the lowest part of a wave called?
Trough.
What is communication?
Away of sending or receiving information.
What is a telegraph?
A device that is used to send coded messages by closing and opening an electric circuit.
What is an example of a circuit?
Series
Parallel
What is an example of waves on a string?
Flag
Towel
Jump rope
What is the amount of space between two waves called?
Wavelength.
How do people transfer information across distances?
Sound waves
Drumming
Telegraph
Bird (carrier pigeons)
Smoke signal
Who created the most effective telegraph?
Samuel Morse.
What is a battery?
A source of stored energy.
What's an example of a water wave?
Ocean
Pool
Pond
River
Lake
What is the height of a wave called?
Amplitude.
What are some ways people communicated without using computers or phones?
Write letters
Carrier pigeons
Messenger
Drumming
Traveling long distance to relay messages
How many wires did the first telegraph have?
26 wires.
What are some examples of renewable resources?
Sun
Hydroelectric Power
Geothermal Power
What is an example of a sound wave?
A drum
A voice
Morse Code
What do you call it when a number of waves repeat in a certain amount of time?
Frequency.
How can sound waves be used to send messages?
Drumming
Telegraph/Morse Code
What is Morse Code?
A digitized code that uses a combination of dots and dashes to represent all 26 letters of the alphabet.
What are some examples of nonrenewable resources?
Fossil Fuels like coal and oil.