Work is done when:, An object moves without force, A force moves an object in the direction of the force, . An object does not move, A person thinks about pushing, The formula for work is:, W = mv, b. W = Fd, c. W = mgh, d. W = ½mv², The unit of work is:, a. Newton, b. Joule, c. Watt, d. Meter, Kinetic energy is energy of:, a. Position, b. Heat, c. Motion, d. Light, The formula for kinetic energy is:, a. KE = mgh, b. KE = ½mv², c. KE = Fd, d. KE = md, If velocity doubles, KE becomes:, a. Double, b. Triple, c. Four times bigger, d. Half.

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