Ffurf safonol mewn cyd-destun

Ffurf safonol mewn cyd-destun

9th - 12th Grade

16 Qs

quiz-placeholder

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Ffurf safonol mewn cyd-destun

Ffurf safonol mewn cyd-destun

Assessment

Quiz

Mathematics

9th - 12th Grade

Hard

Created by

T Wood

Used 5+ times

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16 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

Màs y Ddaear yw 6 x 1024 kg

Màs y Lleuad yw 7 x 1022 kg

Pa un sydd fwyaf trwm?

Y Ddaear

Y Lleuad

2.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

Màs y Ddaear yw 6 x 1024 kg

Màs y Lleuad yw 7 x 1022 kg

Beth yw'r gwahaniaeth rhwng eu masau?

5.3 x 1024 kg

5.93 x 1024 kg

593 x 1024 kg

53 x 1024 kg

5.3 x 1022 kg

3.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

Media Image

Mae ffrindiau yn dadlau am y ffurf safonol, a pha rhif yw'r un mwyaf. Dewisiwch chi y rhif mwyaf:

9.9 x 1015

5 x 1018

8.1 x 10-19

9,000,000,000,000

4.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

Media Image

Os mae galaeth (galaxy) efo 3 x 1010 seren, a phob un efo màs 2 x 1031 kg, beth fydd cyfanswm màs yr holl sêr?

6 x 10310 kg

5 x 1031 kg

5 x 1041 kg

6 x 1041 kg

5.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

Buanedd golau (light speed) yw 3 x 108 metr yr eiliad

Pa mor bell bydd golau yn teithio mewn 1 munud?

9 x 108 metr

1.8 x 108 metr

1.8 x 109 metr

9 x 109 metr

6.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

Media Image

Mae tua 4 x 1011 seren yn y Llwybr Llaethog (Milky Way). Mae tua 1 x 1012 seren yn y galaeth (galaxy) agosaf, sef Andromeda.

Beth yw cyfanswm nifer y sêr y ddwy galaeth?

5 x 1011

1.4 x 1012

5 x 1012

4.1 x 1012

1.4 x 1011

7.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

Mae un nanometr (1 nm) yn hafal i 1 x 10-9 metr.

Beth yw 320 nm mewn metrau yn y ffurf safonol?

32 x 10-9 metr

3.2 x 10-9 metr

3.2 x 10-8 metr

3.2 x 10-7 metr

3.2 x 10-11 metr

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