D5.8 Alexander Graham Bell Vocabulary

partially or completely lacking the sense of hearing

• deaf
• invention
• inventive
• receiver

machine, tool, or other device that someone has made, designed, or though of for the first time

• device
• invention
• instruments
• tool

skilled at inventing or creating something new; ingenious 

• invention
• telegraph
• inventive
• deaf

the study of forces and motion, and how they work in the world

• transmitter
• hearing aid
• receiver
• mechanics

the part of the telephone located in the earpiece that converts electrical signals into sounds

• receiver
• hearing aid
• telegraph
• transmitter

a device that allows a person to send messages over a wire by tapping out coded letters and words

• binoculars
• telegraph
• microscope
• telescope

the part of the telephone that converts sound waves from the human voice into electrical impulses and sends, or transmits, them

• telegraph
• sound waves
• transmitter
• invention