A horseshoe magnet is moved toward a pile of iron shavings. The iron shavings divide and attach to both ends of the magnet. How
does the kinetic energy of the system change? A. Kinetic energy decreases because iron shavings move in the opposite direction of magnetic force.
B. Kinetic energy decreases because iron shavings move in the direction of magnetic force.
C. Kinetic energy increases because iron shavings move in the opposite direction of magnetic force.
D. Kinetic energy increases because iron shavings move in the direction of magnetic force.
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Electrolysis is the process by which ionic substances are decomposed (broken down) into simpler substances when an electric current is passed through them. ... Electricity is the flow of electrons or ions. For electrolysis to work, the compound must contain ions.
When heat is added to a substance, the molecules and atoms vibrate faster. As atoms vibrate faster, the space between atoms increases. The motion and spacing of the particles determines the state of matter of the substance. The end result of increased molecular motion is that the object expands and takes up more space.
