2. Law of Conservation of Energy Energy can neither be created nor destroyed. Energy changes from one kind to another. The total energy of an object never changes.
3. Kinetic Energy Anything that has mass and movement has kinetic energy. The kinetic energy of an object in this case is given by the relation: KE = (1/2)mv2 m=mass of the object V=velocity of the object The greater the mass or velocity of a moving object, the more kinetic energy it has.
4. Kinetic Energy The greater the mass or velocity of a moving object, the more kinetic energy it has.
5. Potential Energy Potential energy is the energy stored in a system. It is the energy that can be released to become kinetic or another form. PE = mgh PE = Energy (in Joules) m = mass (in kilograms) g = gravitational acceleration of the earth (9.8 m/sec2) h = height above earth's surface (in meters)
7. Mechanical Energy Mechanical energy is also the total amount of kinetic and potential energy in a system. Wind-up toys, grandfather clocks, and pogo sticks are examples of mechanical energy. Wind power uses mechanical energy to help create electricity. Potential energy + Kinetic energy = Mechanical energy
16. What is Electrical Energy? Energy caused by the movement of electrons Easily transported through power lines and converted into other forms of energy
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19. What is Nuclear Energy? Nuclear energy is the energy stored in the nucleus of an atom.
22. QUIZ TIME! What type of energy cooks food in a microwave oven? What type of energy is the spinning plate inside of a microwave oven?
23. QUIZ TIME! Electrical energy is transported to your house through power lines. When you plug an electric fan to a power outlet, electrical energy is transform into what type of energy?
24. QUIZ TIME! What energy transformation occurs when an electric lamp is turned on? ELECTRICAL ENERGY