Patterns in the universe God created can help us better understand physics. Holding a ball up in a gravitational field stores potential energy. Likewise, holding a charge in an electric field stores potential energy. Gravitational potential energy depends on the object's mass and distance, Ug=mgh. Similarly, electric potential energy depends on charges and distance, Ue=kq1q2/r. Suppose you observe that the electric potential energy involving two charges has decreased. Based on the Mr. Quan's example problems in the video, where could the energy have gone? Select 2: a. Work (W = ΔPE) - work required to move one of the charges b. Kinetic energy (KE = 1/2mv^2) - one of the charges moved at a velocity c. Heat transfer (Q = -mCΔT) - environment temperature changed d. General energy (E = mc^2) - mass change occurred

Patterns in the universe God created can help us better understand physics. Holding a ball up in a gravitational field stores potential energy. Likewise, holding a charge in an electric field stores potential energy. Gravitational potential energy depends on the object's mass and distance, Ug=mgh. Similarly, electric potential energy depends on charges and distance, Ue=kq1q2/r. Suppose you observe that the electric potential energy involving two charges has decreased. Based on the Mr. Quan's example problems in the video, where could the energy have gone? Select 2: a. Work (W = ΔPE) - work required to move one of the charges b. Kinetic energy (KE = 1/2mv^2) - one of the charges moved at a velocity c. Heat transfer (Q = -mCΔT) - environment temperature changed d. General energy (E = mc^2) - mass change occurred

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