Scalars and vectors

Examples

• Scalars:
• mass
• time
• length
• temperature
• speed
• energy
• Vectors:
• displacement
• force
• velocity
• acceleration
• momentum

Delightful definitions!!!

• Scalar: a quantity fully described by a magnitude alone
• Vector: a quantity that is fully described by both magnitude and direction

Q&Amazing

• Q: Can a scalar quantity be negative?
• A: Yes, positive and negative
• Q: Are all SI units scalar?
• A: All are, but metre can be both scalar and vector as distance and displacement are both measured in metres