Page 34 - Hybrid PBD KSSM 2021 Tg 5 - Fizik

Fizik Tingkatan 5 Bab 1
4. Hubungan ini boleh ditulis sebagai SP 1.4.2 TP1
This relationship can be written as:
x ∝ F

F = kx

iaitu F = daya yang dikenakan
where F = applied force
x = Pemanjangan spring / Extension of the spring
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= Pemalar spring / Spring constant
F = kx ialah rumus bagi Hukum Hooke.
kx is the formula for Hooke’s law.
5. Apakah maksud had kekenyalan? TP1 SP 1.4.3
What is meant by elastic limit?

Had kekenyalan suatu spring ditakrifkan sebagai daya maksimum yang boleh dikenakan ke atas suatu
spring supaya spring itu masih boleh kembali ke panjang asalnya.
The elastic limit of a spring is defined as the maximum force that can be applied to a spring such that the spring will be able
to be restored to its original length.

6. Labelkan had kekenyalan pada rajah di bawah. TP2 SP 1.4.3
Label the elastic limit in the diagram below.
F / N Kawasan tak kenyal
Inelastic region
A B
Kawasan kenyal
Elastic region Had kekenyalan
Elastic limit

O x / cm
7. Pemalar spring, k suatu spring ialah daya yang diperlukan untuk menghasilkan satu unit pemanjangan spring.
Nyatakan rumus bagi pemalar spring. TP2 SP 1.4.3
Spring constant, k of a spring is the force required to produce one unit of extension of the spring. State the formula of spring constant.

Pemalar spring, k = F mempunyai unit N m atau N cm .
–1
–1
x
Spring constant, k = F with units N m or N cm .
–1
–1
x
8. Graf di bawah menunjukkan hubungan antara daya, F dengan pemanjangan spring, x. TP2 SP 1.4.4
The graph below shows the relationship between the force, F and the extension of the spring, x.
F / N

20
15
10

5
0 x / cm
2 4 6 8
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Bab 1.indd 22 11/19/21 4:05 PM