PBD FIZIK BAB 3.0 GRAVITIVITI
Quiz
•
Physics
•
7th Grade
•
Hard
NURAMALINA Moe
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14 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Hukum Kepler Ketiga menyatakan
orbit planet di sekeliling matahari adalah elips, dengan matahari pada satu fokus.
paksi semimajor adalah sama dengan jarak purata planet dari matahari.
kuasa dua tempoh orbit planet adalah berkadar terus dengan kuasa tiga jejari orbitnya.
garis yang menyambungkan planet dengan matahari akan mencakupi luas yang sama dalam selang masa yang sama apabila planet bergerak dalam orbitnya.
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Planet Zuhrah mengorbit Matahari dengan jejari orbit 1.076 x 1011 m. Jisim Matahari adalah 1.99 x 1030 kg. Hitung tempoh orbit Zuhrah. [G = 6.67 x 10-11 Nm2kg-2]
2.36 x 106 s
7.57 x 106 s
1.92 x 107 s
3.74 x 108 s
3.
FILL IN THE BLANK QUESTION
45 sec • 1 pt
Apakah bentuk laluan bagi sebuah planet yang mengelilingi Matahari?
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Jejari orbit Bumi mengelilingi Matahari ialah 1.50 x 1011 m. Bumi mengambil masa 3.15 x 107 s untuk melengkapkan orbitnya. Hitung jisim Matahari?
6.40 x 1029 kg
2.01 x 1030 kg
1.16 x 1033 kg
3.31 x 1043 kg
5.
FILL IN THE BLANK QUESTION
45 sec • 1 pt
Hukum manakah yang menyatakan bahawa kuasa dua tempoh bagi sebarang planet adalah berkadar terus dengan kuasa tiga jejari orbitnya?
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Tempoh satelit di orbit bulatan berjejari R adalah T. Tempoh satelit lain dalam orbit bulat berjejari 4R adalah
8T
2T
7.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Rajah menunjukkan planet Utarid beredar dalam orbit elips mengelilingi Matahari. Antara kedudukan planet Utarid berikut, yang manakah bergerak dengan laju linear yang paling rendah?
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