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Egni

Authored by MrThomasBroEd undefined

Physics

8th Grade

Used 16+ times

Egni
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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

Media Image

Sawl Joule sydd yn egni gwres?

100

90

10

9

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

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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