Open Computer Test

Name __________________________________ Date ______ Score _______

1) What is the definition of telephone, radio and light bulb?
(Search for answers in an online dictionary or encyclopedia.)

telephone

radio

light bulb

2) What were the basic parts of the first telephone, radio, and light bulb?

telephone

radio

light bulb

3) Describe the process of how each invention works.

telephone

radio

light bulb