Aplicația este accesibilă de pe ecrane late

1 / 8
1. What covered the cylinder of the early phonograph?
a) Plastic
b) Tin foil
c) Cotton
d) Metal
2 / 8
2. Where did a person speak?
a) Into a mouthpiece
b) Into a box
c) Into a telephone
d) Into a hole
3 / 8
3. What moved because of the sound vibrations?
a) A wheel
b) A bell
c) A needle
d) A ball
4 / 8
4. What did the needle make in the foil?
a) Small marks
b) Large holes
c) Colourful lines
d) Vibrations
5 / 8
5. What happened while the person was speaking?
a) The cylinder turned.
b) The machine stopped.
c) The foil disappeared.
d) Nothing
6 / 8
6. How did the machine reproduce the recording?
a) The needle followed the marks.
b) A musician played the sound.
c) A second person repeated the words.
d) A person wrote the words.
7 / 8
7. What did Edison recite during an early test?
a) A speech
b) A nursery rhyme
c) A news report
d) A song
8 / 8
8. How did Edison feel when the machine repeated his words?
a) Angry
b) Bored
c) Amazed
d) Tired