Vectors:

* Force: Force has both magnitude (how strong the push or pull is) and direction.

* Displacement: Displacement is the change in position from a starting point to an ending point, taking direction into account.

* Velocity: Velocity is the rate of change of position, including direction (e.g., 50 mph north).

* Momentum: Momentum is the product of mass and velocity, making it a vector due to the velocity component.

Scalars:

* Speed: Speed is the rate of change of position, but it doesn't consider direction (e.g., 50 mph).

* Mass: Mass is a measure of the amount of matter in an object, and it doesn't have a direction.

* Time: Time is a measure of duration and doesn't have a direction.

* Energy: Energy is a scalar quantity that represents the ability to do work. While different types of energy can be associated with direction, energy itself is not a vector.

Key Difference:

The key difference between vectors and scalars is that vectors have both magnitude and direction, while scalars only have magnitude.