Work and Energy: How Forces Move the World

Work Defined – In physics, work happens when a force moves an object over a distance.
Formula in Action – Work equals force × distance, showing how energy transfers through motion.
Energy Connection – Doing work changes or transfers energy from one object to another.
Everyday Example – Lifting a grocery bag is work because you apply force over height.
No Movement, No Work – Pushing hard on a wall doesn’t count as work if nothing moves.
Machines Help – Levers, pulleys, and gears reduce the effort needed to do the same amount of work.
Work to Energy – Work done on an object often becomes kinetic energy, setting it in motion.
Against Resistance – Friction and air resistance mean extra work is needed to keep things moving.
Human Power – From pedaling a bike to swinging a bat, our muscles constantly turn food energy into work.
Driving the World – Work and energy are behind everything from engines to ecosystems, powering how the world moves.