Page 354 - MODUL SPEKTRUM FIZIK SPM

Section B
Question Answer
Soalan Jawapan
9(a) Force per unit area.
Daya per unit luas.
(b) 1. Depth of water in Diagram 9.1 is higher than depth of water in Diagram 9.2.
2. The rate at wich water spurts out in Diagram 9.1 is higher than in Diagram
9.2.
3. The distance achieved by the spurting of water is further in Diagram 9.1
than in Diagram 9.2.
4. The higher the depth of water, the further the distance travelled by the water
that spurts out.
5. The higher the depth of water, the higher the pressure.
1. Kedalaman air dalam Rajah 9.1 lebih tinggi daripada kedalaman air dalam
Rajah 9.2.
2. Kadar air terpancut keluar dalam Rajah 9.1 lebih tinggi daripada dalam
Rajah 9.2.
3. Jarak pancutan air adalah lebih jauh dalam Rajah 9.1 daripada dalam
Rajah 9.2.
4. Semakin tinggi kedalaman air, semakin jauh jarak pancutan air.
5. Semakin tinggi kedalaman air, semakin tinggi tekanan.
(c)(i) 1. Size of bubble increases as it rises to the surface of water
2. Volume of gas is inversely proportional to the depth / pressure of water.
1. Saiz gelembung bertambah apabila naik ke permukaan air.
2. Isi padu gas adalah berkadar songsang dengan kedalaman / tekanan air.
(ii) 1. Larger volume causes higher buoyant force.
2. Upward resultant force increases.
3. Speed / velocity of air bubble rising up increases.
Any two
1. Isi padu bertambah menyebabkan daya julangan bertambah.
2. Daya paduan ke atas bertambah.
3. Laju / halaju gelembung udara naik ke atas bertambah.
Mana-mana dua
(d) Design Reason
√ 1 Streamline shape √ 2 Reduce water resistance
√ 3 Smooth / body-fit √ 4 Reduce water resistance
√ 5 Not porous / absorbent √ 6 Does not absorb water / reduce weight
√ 8 Enable the swimmer to move at ease /
√ 7 Flexible material Easy to move
√ 10 Reduce friction
√ 9 Seamless / no zip and seam
Rekabentuk Sebab
√ 1 Bentuk larus √ 2 Kurangkan rintangan air
√ 3 Licin / sesuai dengan badan
√ 5 Kalis air √ 4 Kurang rintangan air
√ 7 Bahan yang fleksibel √ 6 Tidak menyerap air

Sektor Pembelajaran, Jabatan Pendidikan Negeri Sabah | 2020 353