Work measures the force applied times the distance moved, or displacement. In physics terms, it is the dot or scalar product of the vectors, force and displacement; view the work equation. Determine the amount of work used in moving a box.
Work Against Gravity (03:58)
Weight is a vector taking gravity into account. View the work against gravity equation and learn about gravitational potential energy. Determine the weight of a safe lifted to a building's roof.
Power is the rate at which work is done, measured in watts. Determine the amount of power generated when lifting a toolbox to a shelf.
Kinetic Energy (03:43)
Energy enables a particle to do work. Kinetic energy is the energy a particle has because of its motion. View the energy conservation equation and work-kinetic energy principle. Determine the kinetic energy of a car reaching 60 miles per hour.
Work and Energy Review (01:05)
Review definitions of and equations for work, power, and kinetic energy.
The Law of Universal Gravitation (07:53)
Gravitation is responsible for the attraction of every object in the universe. Learn about the universal gravitational constant. Determine how much a pizza on Earth would weigh on the sun by finding the acceleration of gravity on the sun.
The Law of Universal Gravitation Review (00:35)
Gravitation is the attraction between every object in the universe. View the Law of Universal Gravitation equation.
Credits: Trabajo y Energía (01:38)
Credits: Trabajo y Energía
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