3. Magnetic energy Heiculo
G. Short answer questions.
1. Define kinetic energy. What two physical quantities does it depend on?
2. Why does a comb rubbed on hair attract small pieces of paper?
3. What energy transformation takes place when a ball rolls down a hill?
4. What energy conversions take place in a steam engine?
5. What is the law of conservation of energy?
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Answers
Answer:
1.
Kinetic energy is the energy an object has because of its motion. ... The energy transferred is known as kinetic energy, and it depends on the mass and speed achieved. Kinetic energy can be transferred between objects and transformed into other kinds of energy
Explanation:
2.Plastic comb gets electrically charged due to rubbing & therefore it attracts tiny pieces of paper.May 13, 2014
Answer:
1) Kinetic energy is the energy an object has because of its motion. ... The energy transferred is known as kinetic energy, and it depends on the mass and speed achieved. Kinetic energy can be transferred between objects and transformed into other kinds of energy.
2)Plastic comb gets electrically charged due to rubbing & therefore it attracts tiny pieces of paper.
3)Item NG016003: When a ball rolls downhill, the gravitational potential energy of the ball is transformed into motion energy. A ball is rolling up and over a hill. The ball slows down as it moves from Position 1 to Position 3, and it speeds up as it moves from Position 3 to Position 5.
4)Water is heated to steam in power plants, and the pressurized steam drives turbines that produce electrical current. The thermal energy of steam is thus converted to mechanical energy, which in turn is converted into…
5)In physics and chemistry, the law of conservation of energy states that the total energy of an isolated system remains constant; it is said to be conserved over time. ... For systems which do not have time translation symmetry, it may not be possible to define conservation of energy.
Explanation:
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