What is energy, and why is it important in physics?
Energy is the capacity to do work or produce change. It is fundamental in physics because it describes how systems interact and evolve, underpinning all physica
What are the two main forms of mechanical energy? Describe each.
Kinetic Energy: Energy of an object due to its motion. It depends on the mass and velocity of the object. Potential Energy: Energy stored in an object due to it
How is kinetic energy calculated? What factors affect it?
Kinetic energy (KE) is calculated using the formula: 𝐾 𝐸 = 1 2 𝑚 𝑣 2 KE= 2 1 mv 2 where 𝑚 m is mass and 𝑣 v is velocity. It is affected by the ob
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