Telephone Eureka! CKLA 4th Grade, Unit 4

How did the telephone affect businesses?

• It increased long-distance travel
• It made meetings more complicated
• It saved money by allowing long-distance meetings over the phone
• It eliminated the need for communication

How did the telephone impact the telegraph industry?

• It made the telegraph more advanced
• It put the telegraph out of business
• It made the telegraph more popular
• It had no impact on the telegraph

By what year did more than one hundred thousand Americans have telephones in their homes?

• 1886
• 1800
• 1850
• 1875

What did Bell's voice cause to vibrate, allowing the transmission of sound over the telephone line?

• Metal plates
• Thin pieces of parchment (the diaphragm)
• Glass containers
• Stone slabs

What was the primary form of long-distance communication before the telephone?

• Smoke signals
• Telegrams and mail
• Telepathy
• Emails

What was the main limitation of the telegraph?

• It could only transmit a code of clicks
• It required too much traveling
• It could only transmit sound
• It was too expensive

Why was the telegraph not entirely private for sending messages?

• Messages could be intercepted at telegraph offices
• It required physical mail
• Messages were sent in code
• Operators could hear the messages

What inspired Alexander Graham Bell to invent the telephone?

• To revolutionize mail delivery
• To send the human voice across a wire
• To improve the telegraph
• To send electrical signals across a wire

How did Bell first discover the possibility of transmitting the human voice through a wire?

• He accidentally created a code of clicks
• He spilled acid on a telegraph machine
• He created a new wire system
• He heard a sound from a window

What opportunity did the telephone provide for people living in isolated areas?

• To create secret codes
• To become more isolated
• To make emergency calls for help
• To travel long distances easily