Science U3L3 How is Information Transferred from Place to Place
How does a computer transfer information using a wireless router?
A wireless router uses radio waves
What is an advantage of using light to send Morse code?
Able to send over long distances in the dark
What is a limitation of using Internet cables?
You have to be attached, you can't move around the house.
What is a limitation of a wireless router?
You must be within a certain distance from the box.
What is a disadvantage of using sound to send Morse code?
It draws attention. (Hard to do secretly)
What is a disadvantage of using light to send Morse code?
It is difficult to use in the daytime.
How does a computer transfer information using cables?
It is transferred electronically.
How does a television remote control send information to a television?
Light waves
What type of waves would be used to communicate using a lamp and a laser pointer?
Light waves
Which camera would provide the highest quality image?
One with lots of pixels
What is an advantage of using sound to send Morse code?
People who can't see can get the message.
A camera on a spaceship sends pictures back to Earth. How are the pictures sent?
Radio waves travel through space and are decoded into pixels.
If a message is sent by knocking on the wall and the same message is sent by turning a flashlight on and off. What can be said about the messages?
Same message using different types of energy