Electronic Communications

One of the great changes to our world over the past 100 years has been the invention of electronic communications. It all started with the_________.

• telephone

• telegraph

• radio

• internet

Around 40 years after the telegraph, Alexander Graham Bell received the patent for the ______________. 

• internet

• radio

• television

• telephone

The telegraph was invented by _________in 1836.

• Samuel Morse

• Frederick Douglass

• Alexander Graham Bell

Now instead of just beeps of sound, a person's _______could be transmitted over long distances of electric wires. 

• image

• voice

• video

• all the answers are correct

As the amount of information has grown, more and more data needs to be transmitted over long distances.  One of the ways to send data faster is with ____

• a telegphone

• fiber optics.

• a flash drive

• a telegraph

Fiber optics are long skinny tubes (like wires) made of _____.

• glass

• lead

• aluminum

• gold

Fiber optics transmit

• light

• sound

• images

• smells

_____is a way of sending sounds or other information through the air. 

• Internet

• Wi-Fi

• Radio

• Fiber optics

An Italian scientist named _____got much of the credit for developing the radio. 

• Gipeddo

• Albert Einstein

• Guglielmo Marconi

• Henry Ford

Radio was a major source of home entertainment until the mid-1950s. Then television became more popular.

• True

• False