Page 95 - Hybrid PBD KSSM 2021 Tg 4 - Fizik

Fizik Tingkatan 4 Bab 2
3. Nilai pecutan graviti di Bumi ialah 9.81 m s manakala nilai pecutan graviti di Bulan ialah satu per enam
–2
daripada Bumi. SP 2.8.1 TP3 KBAT Mengaplikasi
The value of gravitational acceleration on Earth is 9.81 m s while the value of gravitational acceleration on the Moon is one-sixth of that
–2
of Earth.
(a) Jika berat suatu objek di Bulan ialah 24 N, tentukan berat objek tersebut di Bumi.
If the weight of an object on the Moon is 24 N, determine the weight of the object on Earth.
(b) Objek tersebut mengambil masa 4 saat untuk mencecah tanah apabila dijatuhkan di Bumi. Hitung masa
bagi objek tersebut mencecah tanah apabila dijatuhkan dari ketinggian yang sama di Bulan.
The object takes 4 seconds to hit the ground when dropped on Earth. Calculate the time for the object to hit the ground when dropped
from the same height on the moon.
(a) W = 24 × 6
bulan
= 144 N
(b) Tentukan ketinggian objek dijatuhkan Tentukan masa objek mencecah tanah di Bulan
Determine the height of the object being dropped Determine the time for the object to hit the ground on the Moon
1
1
s = ut + at 2 s = ut + at 2
2 2
1
1 9.81
= (0)(4) + (9.81)(4 ) 74.48 = (0)(t) + ( )(t )
2
2
2 2 6
2
= 74.48 m t = 91.12
t = 9.55 s

2.8 Kertas 1

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Antara pernyataan berikut, yang manakah benar?
Which of the following statements is true?
A Berat Siva di Bumi adalah enam kali lebih besar berbanding berat Siva di Bulan.
The weight of Siva on Earth is six times gretaer than the weight of Siva on the Moon.
B Berat Siva di Bumi adalah satu per enam daripada berat Siva di Bulan.
The weight of Siva on Earth is one sixth than the weight of Siva on the Moon.
C Berat Siva di Bulan adalah enam kali lebih besar berbanding berat Siva di Bumi.
The weight of Siva on the Moon is six times greater than the weight of Siva on Earth.
D Berat Siva di Bumi adalah sama dengan berat Siva di Bulan.
The weight of Siva on Earth is equal to the weight of Siva on the Moon.

Kriteria Kejayaan:
Saya berjaya
• Menerangkan berat sebagai daya graviti yang bertindak ke atas suatu objek, W = mg.
• Menyelesaikan masalah melibatkan berat.

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02 HYBRID PBD FIZIK F4.indd 54 05/11/2021 8:20 AM