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O Level Physics/Chemistry Tuition Singapore/Tuition Physics/Chemistry O Level/Tutor
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O-Level Singapore/O-Level Physics Tuition/Physics Tutor
Common Mistakes in O-level Physics
•Wrong substitutions
•Answers without appropriate working
•Missing units
•Significant figures
•Vague answers
•Irrelevant answers
To excel in O-level Physics, you have to avoid common mistakes make in O-level Physics. Our O-level Physics tutors are able to guide you along to ace in Physics.
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O-Level Singapore/O-Level/Pure Physics Tuition/Physics Tutor
O-Level Singapore/O-Level Physics Tuition/Physics Tutor
Measurements – Key Concepts
1) Metre rule range is several centimetres to one metre, precision 1 mm
2) Tape measure range is several metres, precision 1 mm
3) Vernier capilers range between 1 cm to 10 cm, precision 0.1 mm
4) Micrometer screw gauge < 1 cm, precision 0.01mm
Physics Tuition Tutor
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O-Level Singapore/O-Level/Physics and Chemistry Tuition/Physics Tutor
Kinematics – Key Concepts
1. Speed is the distance moved per unit time
2. Velocity is the change of displacement per unit time
3. Acceleation is the change of velocity per unit time
4. The gradient of the tangent at a point on the distance-time graph gives the instantaneous speed
5. The gradient of the tangent at a point on the speed-time graph gives the instantaneous accleration.
6. The area under the speed-time graph is the total distance travelled.
7. When air resistance is negilible, all objects fall under gravity with a constant accleration 10 ms-2
8. When there is air resistance, falling object will experiences deceleration until it reaches a terminal velocity. This happens when the weight of the object is equal to the air resistance
Chapter 3 – Purification and Separation
How to determine that a substance is pure?
If the substance has a fix melting and boiling point, the substance is pure. We can also use chromatography to check for pure substance.
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