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KERTAS 3 AMALI FIZIK SPM 2023 - Hak Cipta SMKDO
https://t.me/PerkasaSPM
Jom Sertai PerkasaSPM2023 untuk mendapatkan nota dan tips agar dapat skor dalam SPM 2023 & 2024 #JomBangkit
https://t.me/PerkasaSPM
Jom Sertai PerkasaSPM2023 untuk mendapatkan nota dan tips agar dapat skor dalam SPM 2023 & 2024 #JomBangkit
tips ujian amali fizik 🤍🤍
- susun radas dengan tenang, contohnya nak pasang litar, jangan gopoh
pemboleh ubah :
- MV (manipulated variable) / manipulasi
- RV (responding variable) / bergerak balas
- CV (constant variable) / dimalarkan
- tujuan : untuk mengkaji hubungan antara (MV) dan (RV)
- hipotesis (andaian awal) : guna semakin semakin
- pemerhatian : apa yang kita nampak
- inferens : penerangan daripada pemerhatian
- hubungan : guna semakin semakin
*hafal langkah berjaga-jaga setiap eksperimen
graf :
a - paksi kena ada simbol
b - paksi kena ada unit
c - skala seragam
d - semua titik diplot betul
e - garis lurus / lengkung terbaik
f - saiz graf MESTI besar, 2/3 daripada kertas graf
paksi mesti lukis dekat hujung bingkai kertas graf, barulah grafnya besarr
Creds to owner
- susun radas dengan tenang, contohnya nak pasang litar, jangan gopoh
pemboleh ubah :
- MV (manipulated variable) / manipulasi
- RV (responding variable) / bergerak balas
- CV (constant variable) / dimalarkan
- tujuan : untuk mengkaji hubungan antara (MV) dan (RV)
- hipotesis (andaian awal) : guna semakin semakin
- pemerhatian : apa yang kita nampak
- inferens : penerangan daripada pemerhatian
- hubungan : guna semakin semakin
*hafal langkah berjaga-jaga setiap eksperimen
graf :
a - paksi kena ada simbol
b - paksi kena ada unit
c - skala seragam
d - semua titik diplot betul
e - garis lurus / lengkung terbaik
f - saiz graf MESTI besar, 2/3 daripada kertas graf
paksi mesti lukis dekat hujung bingkai kertas graf, barulah grafnya besarr
Creds to owner
👍11❤5🥰4
RAMALAN AMALI FIZIK , KIMIA & BIOLOGI SPM 2023
- electric
- rate of reaction
- temperature factor
- calorific value of food
FIZIK
- electric
KIMIA
- rate of reaction
- temperature factor
BIOLOGI
- calorific value of food
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Chemistry Amali Questions
1) Observation:
- Colourless gas bubbles are released
- Effervescence occurs
- Magnesium ribbon dissolves completely in hydrochloric acid
2) Inference
- Hydrogen gas is produced.
- Magnesium reacts with hydrochloric acid to produce Magnesium Chloride and Hydrogen gas.
3) Variables
MV: Temperature of Hydrochloric Acid
ORV: Time taken for reaction to complete // Time taken for magnesium ribbon to dissolve completely in hydrochloric acid
RV: Rate of reaction
CV: Volume and concentration of hydrochloric acid // length of magnesium ribbon [REJECT: Mass of magnesium ribbon (kita tak weigh the ribbon, jadi not a possible variable)]
NOTE: RV ikut aim soalan
4) Equations
Chemical: Mg + 2HCl -> MgCl2 + H2
Ionic: 2H+ + Mg -> Mg2+ + H2
5) Hypothesis:
The higher the temperature of hydrochloric acid, the higher its rate of reaction with Magnesium [ikut aim soalan, kalau rate of reaction je then tulis penuh mcmni]
5) Operational Definition
Rate of reaction is..
What you do: time taken
What you observe: magnesium ribbon to dissolve completely in hydrochloric acid
What you do: when magnesium ribbon is added into a beaker which contains 50.0cm3 hydrochloric acid
6) If repeated by replacing...
✨ Hydrochloric acid with ethanoic acid
- ROR lower. Ethanoic acid is a weak acid. Ethanoic acid ionises partially in water to produce a low concentration of H+ io
6) If repeated by replacingns / Lower concentration of H+ ions
✨ Hydrochloric acid with sulphuric acid
- ROR higher. Sulphuric acid is a diprotic acid. Concentration of H+ ions is doubled.
✨ Magnesium ribbon with magnesium powder
- ROR higher. Size of magnesium powder is smaller than magnesium ribbon / total surface area of Mg powder exposed to HCl is bigger.
✨Mg ribbon with Cu ribbon
- Cu ribbon does not dissolve in HCl. Cu does not react with HCl because Cu is less electropositive than hydrogen
7) Precautionary steps
- Thermometer must not touch the bottom of the beaker
- Magnesium ribbon must be cleaned using sand paper to prevent oxide layer
- Eye must be perpendicular to reading to prevent parallax error
semoga bermanfaat untuk semua :))
Credit nopal
1) Observation:
- Colourless gas bubbles are released
- Effervescence occurs
- Magnesium ribbon dissolves completely in hydrochloric acid
2) Inference
- Hydrogen gas is produced.
- Magnesium reacts with hydrochloric acid to produce Magnesium Chloride and Hydrogen gas.
3) Variables
MV: Temperature of Hydrochloric Acid
ORV: Time taken for reaction to complete // Time taken for magnesium ribbon to dissolve completely in hydrochloric acid
RV: Rate of reaction
CV: Volume and concentration of hydrochloric acid // length of magnesium ribbon [REJECT: Mass of magnesium ribbon (kita tak weigh the ribbon, jadi not a possible variable)]
NOTE: RV ikut aim soalan
4) Equations
Chemical: Mg + 2HCl -> MgCl2 + H2
Ionic: 2H+ + Mg -> Mg2+ + H2
5) Hypothesis:
The higher the temperature of hydrochloric acid, the higher its rate of reaction with Magnesium [ikut aim soalan, kalau rate of reaction je then tulis penuh mcmni]
5) Operational Definition
Rate of reaction is..
What you do: time taken
What you observe: magnesium ribbon to dissolve completely in hydrochloric acid
What you do: when magnesium ribbon is added into a beaker which contains 50.0cm3 hydrochloric acid
6) If repeated by replacing...
✨ Hydrochloric acid with ethanoic acid
- ROR lower. Ethanoic acid is a weak acid. Ethanoic acid ionises partially in water to produce a low concentration of H+ io
6) If repeated by replacingns / Lower concentration of H+ ions
✨ Hydrochloric acid with sulphuric acid
- ROR higher. Sulphuric acid is a diprotic acid. Concentration of H+ ions is doubled.
✨ Magnesium ribbon with magnesium powder
- ROR higher. Size of magnesium powder is smaller than magnesium ribbon / total surface area of Mg powder exposed to HCl is bigger.
✨Mg ribbon with Cu ribbon
- Cu ribbon does not dissolve in HCl. Cu does not react with HCl because Cu is less electropositive than hydrogen
7) Precautionary steps
- Thermometer must not touch the bottom of the beaker
- Magnesium ribbon must be cleaned using sand paper to prevent oxide layer
- Eye must be perpendicular to reading to prevent parallax error
semoga bermanfaat untuk semua :))
Credit nopal
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operational definition for
- rate of reaction
time taken for magnesium strip to completely dissolve when magnesium strip is added into hcl
- for this experiment
time taken for magnesium strip to completely dissolve when magnesium strip is added into different temperatures of hcl solution, the higher the temperature of hcl, the shorter the time taken for it magnesium strip to dissolve
- rate of reaction
time taken for magnesium strip to completely dissolve when magnesium strip is added into hcl
- for this experiment
time taken for magnesium strip to completely dissolve when magnesium strip is added into different temperatures of hcl solution, the higher the temperature of hcl, the shorter the time taken for it magnesium strip to dissolve
Bittaufiq wannajah batch 06 for your Chemistry amali 🫶🏻✨
Doa byk2 supaya dipermudahkan amali esok
Doa byk2 supaya dipermudahkan amali esok
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prediction question
🌺 if hcl is replaced with ethanoic
- rate of reaction decrease
- weak acid . ionise partially in water to produce h+
🌺 hcl => h2so4
- rate if reaction increase
- diprotic acid
- concentration h+ is doubled
🌺 mg ribbon => mg powder
- rate of reaction increase
- size decrease
- higher total surface area that is exposed to acid
🌺 mg => copper
- does not dissolve in hcl
- less electropositive that hydrogen
🌺 if hcl is replaced with ethanoic
- rate of reaction decrease
- weak acid . ionise partially in water to produce h+
🌺 hcl => h2so4
- rate if reaction increase
- diprotic acid
- concentration h+ is doubled
🌺 mg ribbon => mg powder
- rate of reaction increase
- size decrease
- higher total surface area that is exposed to acid
🌺 mg => copper
- does not dissolve in hcl
- less electropositive that hydrogen
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