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BAB 1
PENGUKURAN
Fizik Tingkatan 4 KSSM
Oleh Cikgu Norazila Khalid
Smk Ulu Tiram, Johor
1.1 Kuantiti
Fizik
Kuantiti Fizik
 Pengukuran merupakan
kaedahuntuk
menentukan nilai
kuantiti fizik.
 Kuantiti fizik terdiri
daripada kuantiti asas
dan kuantiti terbitan
 Hasil pengukuran yang
jitu membolehkan
manusia membuat
keputusan yang tepat.
Ketinggian
Gunung Kinabalu
ialah 4 095 m
Atlet paralimpik
negara, Mohamad
Ridzuan Puzi mencipta
rekod dunia dengan
catatan masa 11.87 s
dalam acara pecut 100
m (kategori T36) di
Sukan Para Asia 2018.
Kelajuan
harimau,
Panthera tigris
ialah 49 km j–1
hingga 65 km j–1.
kuantiti asas
 Masa, panjang, arus
elektrik, suhu
termodinamik,
jisim, keamatan
berluminositi dan
kuantiti jirim
merupakan kuantiti
asas.
Hasil pengukuran suatu kuantiti fizik boleh
dinyatakan dalam magnitud bersama unitnya.
Lihat pembaris anda.
Sentimeter ialah contoh unit metrik manakala
inci ialah contoh unit imperial.
Pada masa kini, kita lebih biasa menggunakan unit
metrik.
Unit imperial jarang digunakan.
Mars Climate
Orbiter
 Pada tahun 1999, kapal angkasa Mars
Climate Orbiter tiba-tiba hilang di
angkasa lepas.
 Kejadian ini disebabkan oleh
perbezaan unit pengukuran yang
digunakan.
 Kumpulan jurutera menggunakan unit
imperial manakala kumpulan navigasi
menggunakan unit S.I.
 Ketidakseragaman ini telah
menyebabkan kesilapan pentafsiran
data sehingga kapal angkasa tersebut
terhempas ke permukaan Marikh.
Kuantiti Asas dan Kuantiti Terbitan
 Kuantiti asas
ialah kuantiti
fizik yang
tidak boleh
diterbitkan
daripada
kuantiti fizik
yang lain.
Sistem Unit
Antarabangsa
 Sistem Unit Antarabangsa,
biasanya disebut sebagai S.I.
dipersetujui dalam Persidangan
Antarabangsa tentang Berat dan
Ukuran (Conférence Générale des
Poids et Mesures, CGPM) ke-11
pada tahun 1960 di Paris, Perancis
 Penyelarasan sistem unit
pengukuran di seluruh dunia ini
telah memudahkan bidang
saintifik, sukan, perdagangan,
perubatan dan sebagainya.
Memerihalkan
Kuantiti Terbitan
dalam Sebutan
Kuantiti Asas dan
Unit Asas S.I.
 Rumus digunakan
untuk memerihalkan
kuantiti terbitan
dalam sebutan
kuantiti asas dan
seterusnya
menentukan unit
asas S.I.
Kuantiti Skalar dan
Kuantiti Vektor
 Kuantiti skalar ialah
kuantiti fizik yang
mempunyai magnitud
sahaja manakala
kuantiti vektor ialah
kuantiti fizik yang
mempunyai magnitud
dan arah
1.2
Penyiasatan
Saintifik
Penyiasatan Saintifik
 Kita boleh memplot graf
berdasarkan data
penyiasatan saintifik untuk
mentafsir bentuk graf dan
seterusnya menentukan
hubungan antara dua
kuantiti fizik.
 Teliti bentuk-bentuk graf
dan tafsiran yang diberikan.
Menganalisis Graf
untuk Mendapatkan
Rumusan Siasatan
 Secara amnya, terdapat
lima perkara yang
penting dalam
menganalisis graf
TAMAT

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BAB 1 PENGUKURAN.pptx

  • 1. BAB 1 PENGUKURAN Fizik Tingkatan 4 KSSM Oleh Cikgu Norazila Khalid Smk Ulu Tiram, Johor
  • 3. Kuantiti Fizik  Pengukuran merupakan kaedahuntuk menentukan nilai kuantiti fizik.  Kuantiti fizik terdiri daripada kuantiti asas dan kuantiti terbitan  Hasil pengukuran yang jitu membolehkan manusia membuat keputusan yang tepat.
  • 5. Atlet paralimpik negara, Mohamad Ridzuan Puzi mencipta rekod dunia dengan catatan masa 11.87 s dalam acara pecut 100 m (kategori T36) di Sukan Para Asia 2018.
  • 6. Kelajuan harimau, Panthera tigris ialah 49 km j–1 hingga 65 km j–1.
  • 7. kuantiti asas  Masa, panjang, arus elektrik, suhu termodinamik, jisim, keamatan berluminositi dan kuantiti jirim merupakan kuantiti asas.
  • 8. Hasil pengukuran suatu kuantiti fizik boleh dinyatakan dalam magnitud bersama unitnya.
  • 9. Lihat pembaris anda. Sentimeter ialah contoh unit metrik manakala inci ialah contoh unit imperial.
  • 10. Pada masa kini, kita lebih biasa menggunakan unit metrik. Unit imperial jarang digunakan.
  • 11. Mars Climate Orbiter  Pada tahun 1999, kapal angkasa Mars Climate Orbiter tiba-tiba hilang di angkasa lepas.  Kejadian ini disebabkan oleh perbezaan unit pengukuran yang digunakan.  Kumpulan jurutera menggunakan unit imperial manakala kumpulan navigasi menggunakan unit S.I.  Ketidakseragaman ini telah menyebabkan kesilapan pentafsiran data sehingga kapal angkasa tersebut terhempas ke permukaan Marikh.
  • 12. Kuantiti Asas dan Kuantiti Terbitan  Kuantiti asas ialah kuantiti fizik yang tidak boleh diterbitkan daripada kuantiti fizik yang lain.
  • 13.
  • 14.
  • 15. Sistem Unit Antarabangsa  Sistem Unit Antarabangsa, biasanya disebut sebagai S.I. dipersetujui dalam Persidangan Antarabangsa tentang Berat dan Ukuran (Conférence Générale des Poids et Mesures, CGPM) ke-11 pada tahun 1960 di Paris, Perancis  Penyelarasan sistem unit pengukuran di seluruh dunia ini telah memudahkan bidang saintifik, sukan, perdagangan, perubatan dan sebagainya.
  • 16. Memerihalkan Kuantiti Terbitan dalam Sebutan Kuantiti Asas dan Unit Asas S.I.  Rumus digunakan untuk memerihalkan kuantiti terbitan dalam sebutan kuantiti asas dan seterusnya menentukan unit asas S.I.
  • 17.
  • 18. Kuantiti Skalar dan Kuantiti Vektor  Kuantiti skalar ialah kuantiti fizik yang mempunyai magnitud sahaja manakala kuantiti vektor ialah kuantiti fizik yang mempunyai magnitud dan arah
  • 19.
  • 21. Penyiasatan Saintifik  Kita boleh memplot graf berdasarkan data penyiasatan saintifik untuk mentafsir bentuk graf dan seterusnya menentukan hubungan antara dua kuantiti fizik.  Teliti bentuk-bentuk graf dan tafsiran yang diberikan.
  • 22.
  • 23.
  • 24.
  • 25.
  • 26.
  • 27.
  • 28. Menganalisis Graf untuk Mendapatkan Rumusan Siasatan  Secara amnya, terdapat lima perkara yang penting dalam menganalisis graf
  • 29.
  • 30.
  • 31.
  • 32.
  • 33.
  • 34. TAMAT