Ffrithiant

Ffrithiant

6th - 8th Grade

10 Qs

quiz-placeholder

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Ffrithiant

Ffrithiant

Assessment

Quiz

Physics

6th - 8th Grade

Practice Problem

Hard

Created by

E Evans

Used 22+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Beth sy'n digwydd i symudiad gwrthrych wrth i ffrithiant gynyddu?

Mae'n cyflymu

Mae'n arafu

Mae'n aros ar yr un cyflymder

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Pa sylwedd sydd a'r ffrithiant isaf?

Heol tarmac

Heol wlyb

Heol rhewllyd

Heol gerrig mân

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Sut mae hofranlong yn lleihau'r ffrithiant rhwng y llong a'r llawr?

Mae gwely aer yn lleihau faint o ronynnau sy'n crafu heibio'i gilydd

Mae'n achosi'r gwrthiant aer i gynyddu

Mae'n pwmpio aer i mewn i'r dŵr i leihau'r dwysedd

Mae'n gwneud y llong yn ysgafnach wrth ychwanegu aer

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Beth yw pwrpas iraid?

Lleihau ffrithiant

Cynyddu ffrithiant

Actio fel glud

Oeri'r sylwedd

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Pa fath o egni caiff ei ryddhau pan mae llawer o ffrithiant?

gwres

potensial elastig

niwclear

trydanol

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Beth sy'n achosi ffrithiant?

arwynebau'n crafu

mas sylweddau

gwrthdaro gronynnau aer

effaith disgyrchiant

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Pa sylwedd sydd a'r ffrithiant uchaf?

Heol tarmac

Heol wlyb

Heol rhewllyd

Heol gerrig mân

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