Types of Energy
The type of energy given off by the sun.
Solar energy.
Energy is neither ___________ nor ____________, but it can be _________________.
Energy is neither created nor destroyed, but can be transferred.
Name 5 examples of electrical energy you use in your life.
Answers will vary.
What is the law of electric charge?
2. Unlike charges attract.
What happens if two positive charges near each other?
They repel.
The type of energy stored in the bonds between atoms.
Chemical energy.
What is potential energy?
The energy that something has due to its position.
Name 2 forms of kinetic energy we use.
- Wind
- Water
What does it mean for a material to be electrically neutral?
That the material has an equal number of positive and neutral charges.
What happens if a positive and negative charge near each other?
They attract.
Energy given off when atoms collide and fuse.
Nuclear Energy.
What is kinetic energy?
The energy of motion.
How does Canada get the majority of its electrical energy?
Hydroelectricity (Water)
What is it called when a material is charged through rubbing?
Charging by friction.
What happens if two negative charges near each other?
They repel.
Energy given off as heat.
Thermal energy.
What are the 3 parts of a generator system?
Generator, Turbine, and Shaft.
Give an example of renewable energy.
- Solar
- Wind
- Water
What does it mean for a material to be electrically charged?
That is has an unequal number of positive and negative charges.
What are positive and negative charges called?
Protons and Electrons.
Mechanical Energy.
How does a wind turbine work?
1. Wind (kinetic energy) spins the turbine.
2. Kinetic energy is transferred to electrical energy through the generator system.
Give an example of a non-renewable energy source.
- fossil fuels
- nuclear
How does lightning work?
Ice particles collide inside clouds, creating negative charges at the base and positive charges at the top. When the negative charge at the bottom becomes too strong, it rushes down to connect with positive charges on the ground, creating a flash.
How does something become positively charged?
When electrons are rubbed off of a material.