
Egni
Authored by MrThomasBroEd undefined
Physics
8th Grade
Used 16+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dyma'r egni sydd yn tynnu pethau tuag at y ddaear.
Trydanol
Potensial Disgyrchiant
Potensial Cemegol
Cinetig
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dyma'r egni sydd gan gwrthrychau wrth iddynt ddisgyn tuag at y ddaear.
Trydanol
Potensial Disgyrchiant
Potensial Cemegol
Cinetig
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pa frawddeg sydd yn gywir?
Mae egni'n cael ei greu
Mae egni'n cael ei ddinistrio
Mae egni'n cael ei greu ond nid yw'n cael ei ddinistio
Nid yw egni'n cael ei greu na'i ddinistrio
4.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
pa ddau fath o egni sydd yn wastraff wrth i gar symud?
Trydanol
Potensial Cemegol
Sain
Gwres
Cinetig
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sawl Joule sydd yn egni gwres?
100
90
10
9
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Egni golau sydd yn ddefnyddiol. Beth yw effeithlonrwydd y bwlb?
10%
50%
90%
100%
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mae llyfr yn disgyn oddiar silff. Disgrifiwch y trosglwyddiadau egni.
sain -> cinetig -> potensial disgyrchiant
potensial disgyrchiant -> sain -> cinetig
cinetig -> potensial disgyrchiant -> sain
potensial disgyrchiant -> cinetig -> sain
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