Free Printable Adolygu Deddfau Newton

1.

Mae'r fan yn symud ar fuanedd cyson. Beth ydi'r gwerth posib ar gyfer A? / The van here is moving at constant velocity, What is a possible value of the force A?

a)

0 N

b)

50 N

c)

100 N

d)

150 N

2.

Mae'r balwn aer poeth yma yn cyflymu i fyny, beth ydi'r gwerth posib ar gyfer y grym gwthiad i fyny? / The hot air balloon here is accelerating upwards, what is a possible value of its uplift force?

a)

0 N

b)

500 N

c)

1000 N

d)

2000 N

3.

Mae'r hofrenydd yma yn llonydd, beth ydi'r gwerth posib ar gyfer ei bwysau? / The helicopter here is stationary, What is a possible value of its weight?

a)

0 N

b)

1000 N

c)

2000 N

d)

4000 N

4.

Mae'r awyren yma yn arafu, beth ydi'r gwerth posib ar gyfer grym yr injan? / The plane here is decelerating, what is a possible value of the engine force?

a)

0 N

b)

700 N

c)

1000 N

d)

1400 N

5.

Mae'r car yma yn arafu, beth ydi gwerth posib y grym brecio? / The car here and is decelerating, what is a possible value of the braking force?

a)

0 N

b)

500 N

c)

1000 N

d)

1500 N

6.

Mae gan y car yma fas o 1000 kg, cyfrifwch ei arafiad? / The car here has a mass of 1000 kg, calculate the deceleration?

$arafiad\ =\ \frac{grym\ cydeffaith}{mas}$ $deceleration\ =\ \frac{resul\tan t\ force}{mass}$

a)

0 m/s²

b)

0.5 m/s²

c)

2.0 m/s²

d)

5.0 m/s²

7.

$grym\ cydeffaith\ =\ mas\ \times cyflymiad$ $resul\tan t\ force\ =\ mass\ \times acceleration$

Mae gan car fas o 1000kg. Beth ydi'r grym cydeffaith os ydi'r cyflymiad yn 2 m/s2? / A car has a mass of 1000kg. What is the resultant force if the acceleration is 2 m/s2?

(a)

8.

$grym\ cydeffaith\ =\ mas\ \times cyflymiad$ $resul\tan t\ force\ =\ mass\ \times acceleration$

Mae gan car fas o 10,000kg. Beth ydi'r grym cydeffaith os ydi'r cyflymiad yn 0.8 m/s2? / A car has a mass of 10,000kg. What is the resultant force if the acceleration is 0.8 m/s2?

(a)

9.

Mae gofodwyr ar y Lleuad yn teimlo'n ysgafnach oherwydd fod dim disgyrchiant yno. / Astronauts on the Moon feel lighter because there is no gravity there.

a)

Gwir / True

b)

Gau / False

10.

Byddai byw ar blaned Iau yn gwneud i chi roi pwysau ymlaen. / Living on Jupiter would make you gain weight.

a)

Gwir / True

b)

Gau / False

11.

Pwysau afal arferol ydi 1 cilogram. / The weight of an average apple is 1 kilogram.

a)

Gwir / True

b)

Gau / False

12.

Mae 1 Newton o ddur yn pwyso mwy na 1 Newton o blu. / 1 Newton of steel weighs more than 1 Newton of feathers.

a)

Gwir / True

b)

Gau / False

13.

Mae eich pwysau ar y Lleuad yn wahanol i'ch pwysau ar Iau. / Your weight on the Moon is different than your weight on Jupiter.

a)

Gwir / True

b)

Gau / False

14.

Dyma graff buanedd-amser o blymiwr awyr. Rhwng pa ddau bwynt roedd o'n cyflymu? / This is a speed-time graph of a skydiver. Between which two points does he accelerate?

a)

A

b)

B

c)

C

d)

D

e)

E

15.

Dyma graff buanedd-amser o blymiwr awyr. Rhwng pa ddau bwynt mae o ar fuanedd terfynol cyflym? / This is a speed-time graph of a skydiver. Between which two points is he at a fast terminal speed?

a)

A

b)

B

c)

C

d)

D

e)

E

16.

Dyma graff buanedd-amser o blymiwr awyr. Ar pa bwynt ydi o'n agor ei barasiwt? / This is a speed-time graph of a skydiver. At which point does he open his parachute?

a)

A

b)

B

c)

C

d)

D

e)

E

17.

Dyma graff buanedd-amser o blymiwr awyr. Rhwng pa ddau bwynt mae o ar fuanedd terfynol araf? / This is a speed-time graph of a skydiver. Between which two points is he at a slow terminal speed?

a)

A

b)

B

c)

C

d)

D

e)

E

Adolygu Deddfau Newton

Total questions: 17

Worksheet time: 12mins

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