9/27/17 Chapter 2 Section 1 NOTES

Energy - is the ability to cause change. When an object has energy, it can make things happen.

1. Kinetic energy - is the energy an object has due to its motion. If an object isn’t moving, it doesn’t have

  • The faster the ball goes, the more kinetic energy it has.
  • Larger the mass of an object the greater the Kinetic energy.
EX) bowling ball vs. volleyball

2. Potential energy - is the energy stored in an object because of its position.
  • The higher above the floor an object is the greater the potential energy will be.
  • The more mass an object has, the more potential energy it has.

3. Thermal energy - increases as its temperature increases and comes from another form of energy
called chemical energy.
4. Chemical energy - is the energy stored in chemical bonds.

5. Light Energy - light is absorbed by an object, the object can become warmer. The object absorbs
Energy from the light and this energy is transformed into thermal energy. The energy
carried by light is called radiant energy.

6. Electrical Energy - The electric current that comes out of batteries and wall sockets carries electrical
energy. To produce electrical energy large power plants are needed.

7. Nuclear Energy - Nuclear power plants use the energy stored in the nucleus of an atom to generate
electricity. Nuclear energy can be transformed into other forms of energy.