GCSE/IGCSE Physics revision notes section 1
What is Scalar
Scalar quantity only has magnitude (number value)
Eg. 10,000 km
What is Vector
Vector quantity has both magnitude and direction
Eg. 10,000 km, north
Resultant of 2 vectors
Finding resultant of 2 vectors means adding them or finding the sum value
There are 2 ways to find the resultant
Pythagorean Theorem
Trigonometry
Examples of Vector
Distance
Displacement
Velocity
Acceleration
Force
Examples of Scalar
Time
Speed
Temperature
Volume
Mass
How to measure distance with ruler
Determine the smallest graduation on the scale
Subtract one extremity from the other extremity
Eg. Subtract the smaller number from the larger number
9-0=9
Recognize and use the conventions
Signs
Symbols
Systematic
physics notes