Is energy a vector quantity or a scalar quantity?

Answer 1

Energy is a scalar quantity.

Answer2: It depends on the angle!

Energy can be a scalar or a vector; consider the vectors F force and D displacement:

FD = -F.D + FxD = |FD| (cos(angle) + v sin(angle)).

F.D is called work a form of energy and is a scalar; FxD is called Torque and is a vector form of energy. both work and Torque have units of joules or newton times meters.

Energy like many quantities in physics is a quaternion consisting of a scalar part and a vector part; E = Escalar + Evector = E(cos(angle) + v sin(angle)), whether the quantity is a scalar or a vector or both depends on the angle.

Answer 2

energy is a scalar quantity because energy does not has any direction . vector quantities need direction as well as magnitude.

Answer2:

Energy is like many concepts a Quaternion, i.e the sum of a scalar and a vector.

Examples of vector energy

FxD = Vector energy called Torque.

cmV = cmV = cP is vector momentum (P) Energy. This energy is the so- called "Dark Energy".

Answer 3

Energy is a scalar quantity. It does not have a direction associated with it, unlike vector quantities such as force or velocity.

Answer 4

Energy is a scalar.