CAIE IGCSE Physics Scalar and Vector Quantities
Practise defining scalars and vectors, classifying familiar quantities and using magnitude and direction to explain why speed, velocity, force or energy differs.
- Syllabus
- 2026–2028
- Course
- Physics 0625
Exam points
- state that a scalar has magnitude only whereas a vector has both magnitude and direction
- classify speed, mass and energy against velocity, force, momentum and field strength
- justify a classification by referring to direction, not merely by naming the quantity as scalar or vector
1.1.4—A scalar quantity has magnitude (size) question 1
Fig. 2.1 shows a motorcyclist accelerating along a straight horizontal section of track.
Fig. 2.1
The motorcyclist and motorcycle have a combined mass of 240 kg .
At the end of the straight section, the track remains horizontal but bends to the right, as shown in Fig. 2.1.
When the motorcyclist reaches the bend, she travels around the bend in a circular path at a constant speed.
Velocity is a vector quantity.
State how a vector quantity differs from a scalar quantity.
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