
BBC - How to Make - Clustffonau
Authored by Sion JONES
Physics, Chemistry, Design
10th Grade
Used 8+ times

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20 questions
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1.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Sawl par o glustffonau sydd yn cael ei werthu bob eiliad?
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pwy ddyfeisiodd y seinydd (speaker) cyntaf, fel rhan o'r ffôn cyntaf?
Thomas Edison
Charles Darwin
Alexander Graham Bell
Norman Telephone
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pryd y dyfeisiwyd y seinydd (speaker) yn y ffôn cyntaf?
1876
1980
1066
2010
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Yn 1881, cysylltodd Ezra Gilliland seinydd (speaker) ar fand pen i'w defnyddio ble?
Ar drafnidiaeth gyhoeddus
Mewn cyfnewidfeydd ffôn (telephone exchanges)
Awyrennau
Ar frawd / chwaer swnllyd
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Roedd cas y siaradwr mewn clustffonau cynnar wedi ei wneud o ba blastig a ddyfeisiwyd ym 1809?
Bacelite
PVC
ABS
Acrylig
6.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Ym mha flwyddyn y rhyddhaodd John Koss y clustffonau stereo cyntaf?
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Beth oedd enw'r chwaraewr casét stereo personol cyntaf, a ryddhawyd gan Sony ym 1979?
CassettePod
MP1 Player
Walkman
Boombox
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