Physics / core

Vectors

Also known as: vector quantities, arrows

definition

Mathematical quantities that have both a magnitude (size) and a direction, represented as arrows in diagrams. Most physical quantities that involve direction are vectors.

💡 Intuition

An arrow pointing somewhere with a certain length—the length is 'how much,' the direction is 'which way.'

Core Idea

Vectors capture directional quantities; scalars (like mass) don't have direction.

🔬 Example

Velocity 30 m/s north, Force 10 N downward, Displacement 5 m east.

🎯 Why It Matters

Most physical quantities that involve direction are vectors.

⚠️ Common Confusion

Adding vectors isn't like adding numbers—you must account for direction.

Related Concepts

How Vectors Connects to Other Ideas

Once you have a solid grasp of vectors, you can move on to displacement, velocity and force.

Compare With Similar Concepts

Common Mistakes Guides

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Frequently Asked Questions

What is Vectors in Physics?

Mathematical quantities that have both a magnitude (size) and a direction, represented as arrows in diagrams.

Why is Vectors important?

Most physical quantities that involve direction are vectors.

What do students usually get wrong about Vectors?

Adding vectors isn't like adding numbers—you must account for direction.

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