Work and Energy — Concept Check Energy may be defined as the capacity to do work.

Introduction / Context:
The statement tests the foundational definition of energy in physics. Energy is an abstract scalar that quantifies the ability of a system to perform work or produce change, appearing in many forms such as kinetic, potential, thermal, and electrical energy.

Given Data / Assumptions:

• Work is defined as W = F * s * cosθ (in mechanics) and measured in joules (J).
• Energy, measured in joules, is transferable and conserved in isolated systems.

Concept / Approach:
Operationally, if a system can exert a force through a distance (or cause equivalent change), it possesses energy. Different forms of energy interchange under conservation laws, but their sum remains constant (ignoring losses to surroundings where applicable).

Step-by-Step Solution:

Verification / Alternative check:
In electrical contexts, energy = power * time; in thermal contexts, heat transfer is energy in transit. All instances reflect capacity to produce change or work.

Why Other Options Are Wrong:
Labeling the definition 'Incorrect' would contradict standard physics terminology used across mechanics, thermodynamics, and electromagnetism.

Common Pitfalls:
Treating energy as substance rather than a quantitative state property; confusing energy with power (rate of doing work, measured in watts).

Final Answer:
Correct.