Page 70 - Hybrid PBD KSSM 2021 Tg 4 - Fizik

Fizik Tingkatan 4 Bab 2
Berdasarkan graf,
Based on the graph,
(a) Tentukan halaju gerakan dari / Determine the velocity of the motion from
(i) t = 0 ke / to t = 5 s (ii) t = 10 s ke / to t = 20 s (iii) t = 20 s ke / to t = 35 s
= –10 – 0 = 0 m s –1 = 25 – 0
5 – 0 35 – 20
= –2 m s –1 = –1.67 m s –1

(b) Cari / Find
(i) jumlah jarak yang dilalui oleh objek (ii) jumlah sesaran
the total distance travelled by the object the total displacement
d = 10 + 10 + 25 s = 25 m
d = 45 m

(c) Hitung / Calculate
(i) laju purata (ii) halaju purata
the average velocity

the average speed Halaju, v / m sBhd. All Rights Reserved.
v = 45 = 1.29 m s –1 v = 25 = 0.71 m s –1
35 35

3. Padankan graf-graf halaju-masa yang berikut dengan menulis nombor graf berdasarkan penerangan gerakan
yang betul. SP 2.2.1 TP2
Match the following velocity-time graphs by writing the graph number according to the suitable description of motion.
Penerbitan Pelangi Sdn
Halaju, v / m s –1 –1 Halaju, v / m s –1
Velocity Velocity Velocity

Masa, t / s Masa, t / s Masa, t / s
Time Time Time

1 2 3
Nota Visual
Graf gerakan
Graph of motion

Halaju, v / m s –1 –1 –1
Velocity Halaju, v / m s Halaju, v / m s
Velocity Velocity

Masa, t / s
Masa, t / s Time
Time
Masa, t / s
Time

4 5 6

29 © Penerbitan Pelangi Sdn. Bhd.

02 HYBRID PBD FIZIK F4.indd 29 05/11/2021 8:20 AM