What is Energy?
Energy is the ability to do work.
What is the Law of Conservation of Energy?
The Law of Conservation of Energy states that energy can neither be created nor destroyed, only converted from one form of energy to another.
What is wind energy?
Wind energy uses the power of wind to turn a turbine which generates electricity.
Electricity is a form of energy that results from charged particles, which can be carried by wires.
What are the three basic components of a circuit.
Power source, load, and conductor (or wire).
What is the difference between Kinetic and Potential Energy?
Potential energy is the energy "stored" in an object, kinetic energy is energy at work.
Describe how energy is transformed in a lamp.
Electrical energy goes in, and radiant and thermal energy come out.
What is solar energy?
Solar energy converts the Sun’s light and heat into electricity.
What is the negatively charged particle that orbits the atom?
An electron.
What are the 2 types of circuits? Describe each one.
A series circuit is a circuit that has more than one load, but only one path that the electrons flow through. There are no branches in the path.
A parallel circuit has more than one load and has multiple paths.
What are the 6 types of energy we spoke about in class?
1. Mechanical Energy
2. Thermal Energy
3. Radiant Energy
4. Electrical Energy
5. Chemical Energy
6. Nuclear Energy
The battery provides chemical energy which is transformed into radiant energy.
What is natural gas?
Natural gas is a fossil fuel found underground. It emits less carbon dioxide than coal when burned.
What is the center of the atom called?
The nucleus.
What type of circuit is this?
Parallel.
What is Radiant Energy and what are 3 examples?
Radiant energy is energy that travels in electromagnetic waves, such as visible light. 3 examples are, the sun, x-rays, and microwaves.
Describe how energy is transformed in a hydropower dam.
Water turns a turbine which provides mechanical energy which is transformed into electrical energy.
What is hydro energy?
Hydro generation uses the power of flowing water to generate electricity.
What is the positively charged particle in the center of the atom?
A proton.
What type of circuit is this?
Series
Name the three types of thermal energy and describe each one.
Conduction is the movement of heat by direct contact.
Convection is the movement of heat by the circulation of a liquid or gas.
Radiation is the movement of heat energy through electromagnetic waves.
Describe how energy is transformed in a human being.
Humans eat food which gives chemical energy, which is transformed into mechanical and thermal energy.
What is nuclear energy?
Nuclear generation uses the power of nuclear fission to generate steam, which turns a turbine to generate electricity.
What are the neutrally charged particles in the center of the atom called?
A neutron.
Describe what a conductor and insulator are and give two examples of each.
An electrical conductor is a material which electricity can flow through. For example, metal or water.
Materials that completely stop an electrical flow are called insulators. For example, rubber or glass.