9702 · 1.4
Scalars and vectors
Welcome to the world of **scalars** and **vectors**! In physics, understanding these two fundamental categories of physical quantities is crucial. Some quantities, like temperature, are simple, needing just a size. Others, like the velocity of a rocket, require both size and a specific direction. Let's dive into how we define, represent, and combine them. This pilot aligns with **Senpai Corner** AS notes (2025–2027) for topic **1.4**.
Need to know
What you need to know
- A scalar is a quantity which only has a magnitude.
- E.g. speed, mass, time and distance.
- A vector is a quantity with both a magnitude and direction.
- Eg. velocity, acceleration, weight, and displacement.
- If you want to know if a unit is a scalar or vector try putting a negative in front of it!.
Explanation
Scalars and vectors
- A scalar is a quantity which only has a magnitude.
- E.g. speed, mass, time and distance.
- A vector is a quantity with both a magnitude and direction.
- Eg. velocity, acceleration, weight, and displacement.