Energy Sources
What are the two main types of energy sources?
Renewable and non-renewable
What is the ability to do work, or the ability to cause change called?
Energy
What are the different forms of energy? List 5.
Thermal, radiant (light), sound, electrical, mechanical, chemical, nuclear, gravitational, potential, kinetic, muscular
What does the Law of Conservation state?
Energy cannot be created or destroyed, only transferred or transformed
True or False? Turning off the lights when you're not in the room helps to conserve energy.
True
Name an example of a renewable energy source.
Solar, wind, hydro, geothermal, biomass
Define the following term: Turbine
Turbine: a machine that generates electricity by spinning/ moving in circles
What is the difference between potential and kinetic energy?
Potential energy is stored energy, while kinetic energy is the energy of motion
When you turn on a light, what is the input energy form?
Electricity
True or False? Closing curtains or blinds during hot summer days can help conserve energy.
True
Name the three main kinds of fossil fuels.
Coal, oil (petroleum), natural gas
Define the following term: resources
Resources: materials used to produce goods or services
This form of energy comes from vibrations.
Sound energy
When you use a car, what is the output energy form?
Kinetic energy
Name one negative impact that humans have on the environment.
Negative: pollution, deforestation
How are fossil fuels made?
From the remains of plants and animals that lived millions of years ago
How would you define non-renewable energy?
Course of energy that will run out or will not be replenished in our lifetimes.
The sun is an example of two forms of energy.
True or False? Energy can only be transferred in the form of heat.
False
Name one positive impact that humans have on the environment.
Positive: conservation efforts, using renewable energy
What is the main energy source for all of Canada?
Hydro (60%)
Define the following: Generator
Generator: a device that converts mechanical energy into electrical energy
This form of energy is stores in the bonds of atoms and molecules and happens when two substances interact with one another.
Chemical energy
When an elevator button is pressed, mechanical energy is converted into ___________ energy.
Kinetic
What is one advantage of using renewable energy sources?
They are sustainable, do not deplete natural resources, and have low environmental impact