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BAB 3: KEGRAVITIAN

Authored by MOHAMAD Moe

Physics

10th - 11th Grade

Used 9+ times

BAB 3: KEGRAVITIAN
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16 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

Sebuah satelit mengelilingi bumi boleh berada dalam orbitnya dan tidak terlepas ke ruang angkasa kerana satelit itu

A satellite moves around the earth in its orbit and does not escape from the space because the satellite

menjadi tidak berat/becomes weightless.

bergerak dalam vakum/move in a vacuum.

sentiasa ditarik oleh daya graviti bumi/always pulled by the earth gravitational force.

bergerak dengan kelajuan yang sangat tinggi/move with highest speed.

2.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

Hukum Kegravitian Semesta Newton menyatakan daya graviti antara dua objek berkadar terus dengan hasil darab jisim kedua-dua jasad itu dan berkadar songsang dengan

Newton’s Universal Law of Gravitation states that the gravitational force between two objects is directly proportional to the product of masses of the two objects and inversely proportional to

jarak di antara dua objek/distance between the two objects.

kuasa dua hasil darab jejari jasad/square of the product of the body’s radii.

kuasa dua jarak di antara pusat dua jasad/square of the distance between the centres of the two

objects.

kuasa tiga jarak di antara dua jasad dari pusat/cube of the distance between the centres of the two

objects.

3.

MULTIPLE CHOICE QUESTION

3 mins • 5 pts

Sekiranya jarak di antara dua zarah adalah dua kali ganda, apakah yang berlaku kepada daya graviti di antara dua zarah itu?

If the distance between two particles is doubled, what happened to the gravitational force between them?

Dikurangkan kepada satu perempat daripada

nilai asal/Is reduced to one-fourth of the original value

Dikurangkan kepada separuh daripada nilai asal/Is reduced to half of the original value

Menjadi dua kali ganda/Becomes double

Menjadi empat kali ganda/Becomes four times

4.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

Jika jisim Bumi menjadi empat kali, apakah yang akan berlaku kepada nilai g?

If the mass of the Earth becomes four times, what will happen to the value of g?

Double/Dua kali ganda

Tiada kesan/No effect

Empat kali/Four times

Separuh/Half

5.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

Media Image

Rajah menunjukkan dua jasad A dan B dengan jisim m1 dan m2 masing-masing. Jarak antara pusat keduanya ialah r dan daya graviti ialah F. Daya F akan berkurang sekiranya

Diagram shows two object A and B with mass m1 and m2 respectively. The distance between center of the objects is r and the gravitational force is F. F will decrease if

m1 bertambah / m1 increases

m2 bertambah / m2 increases

r bertambah / r increases

6.

MULTIPLE CHOICE QUESTION

5 mins • 5 pts

Suatu objek dengan berat 200 N berada di permukaan Bumi. Cari beratnya jika ia adalah 1 × 106 m di atas permukaan. Diberikan G = 6.67 × 10–11 N m2 kg–2,

MBumi = 6.0 × 1024 kg, RBumi = 6.4 × 106 m.

An object weighs 200 N on the surface of the Earth. Find its weight if it was 1 × 106 m above the surface. Given, G = 6.67 × 10 –11 N m2 kg–2, MEarth = 6.0 × 1024 kg,

REarth = 6.4 × 106 m.

73.1 N

149.02 N

218.2 N

292.2 N

7.

MULTIPLE CHOICE QUESTION

5 mins • 5 pts

Daya graviti antara dua jisim ialah 120 N apabila jaraknya ialah 20 m. Jika jarak di antara dua jisim berubah dan daya graviti menjadi 480 N, berapakah jarak baharu di antara dua jisim tersebut?

The gravitational force between two masses was 120 N when they were 20 m apart. If the distance between them was changed and the gravitational force became 480 N, how far apart were they then?

2 m

8 m

10 m

15 m

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