Question

Q5 Define energy & give it's SI unit. Is it a scalar or vector quantity?​

Answer 1

Explanation:

the capacity to do any work is called energy. its SI unit is Joule.it is a scaler quantity.

Answer 2

Answer:

ENERGY

• Energy is a thermodynamic quantity equivalent to the capacity of a physical system to do work.
• It is a scaler quantity.
• Si unit of energy is Joule.
• Other units of energy are kilojoule , erg , calorie etc.
• Energy is neither be created nor be destroyed , it can only be transfer from one form to another form.
• Energy is conserved.
• Some forms of energy are as follows :

1. Mechanical energy.
2. Magnetic energy.
3. Electrical energy.
4. Gravitational energy.
5. Chemical energy.
6. Nuclear energy . etc.