
Cwis ar Gronynnau Nano-raddfa a Hydrogeliau
Quiz
•
Science
•
10th Grade
•
Practice Problem
•
Hard
Kathryn Roberts
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Beth yw diamedr gronyn nano-raddfa?
300 - 400 nm
200 - 300 nm
100 - 200 nm
1 - 100 nm
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pa briodwedd sydd gan gronynnau arian nano-raddfa?
Maen nhw'n dryloyw
Maen nhw'n fflamadwy
Maen nhw'n gallu cyrydu
Maen nhw'n dda am ladd bacteria a firysau
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sut mae nano-arian yn cael ei ddefnyddio mewn sanau?
I wneud y sanau'n fwy gwydn
I wneud y sanau'n fwy lliwgar
I orchuddio tu mewn sanau i ladd bacteria sy’n achosi arogleuon drwg
I wneud y sanau'n fwy cyfforddus
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pam mae gronynnau nano-raddfa titaniwm deuocsid yn cael eu defnyddio mewn eli haul?
I atal golau uwchfioled niweidiol
I wneud yr eli haul yn fwy trwchus
I wneud yr eli haul yn arogli'n dda
I wneud yr eli haul yn lliwgar
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Beth yw prif ddefnydd arian swmp?
Mewn gemwaith
Mewn eli haul
Mewn sanau
Mewn ffenestri sy’n eu glanhau eu hunain
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Beth yw pryderon iechyd posibl gronynnau nano-raddfa?
Maen nhw'n gallu achosi alergeddau
Maen nhw'n gallu achosi diffyg cysgu
Maen nhw'n gallu mynd drwy'r croen ac i mewn i lif y gwaed
Maen nhw'n gallu achosi llosg haul
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sut mae hydrogeliau'n ymateb i newidiadau tymheredd neu pH?
Maen nhw'n newid lliw
Maen nhw'n caledu
Maen nhw'n rhyddhau dŵr
Maen nhw'n dod yn fwy tryloyw
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