Chapter 5
The type of energy that is stored and not currently causing change.
What is potential energy?
The two main parts of a generator that create electricity.
What are magnets and a coil of wire (armature)?
The process by which plants convert sunlight, water, and carbon dioxide into glucose and oxygen.
What is photosynthesis?
Fuels such as coal, oil, and natural gas are formed from these ancient materials.
What are plants and animals?
The equation that defines the relationship between power, energy, and time
What is Power equals Energy divided by Time (P = E ÷ T)?
The type of energy an object has when it is moving.
What is kinetic energy?
The scientist who discovered that moving magnets could produce electricity.
Who is Michael Faraday?
The process that releases energy from glucose and oxygen inside mitochondria.
What is cellular respiration?
The three main types of coal mined in Alberta.
What are lignite, sub-bituminous, and bituminous coal?
The number of kilowatts equal to 1500 watts.
What is 1.5 kilowatts?
The scientific rule that energy cannot be created or destroyed, only changed in form.
What is the Law of Conservation of Energy?
The most common fuel source used in Alberta’s power plants.
What is coal?
The organelle responsible for photosynthesis in plant cells.
What is the chloroplast?
The two main methods of coal mining used in Canada.
What are open-pit (surface) mining and underground mining?
The amount of energy used in kilowatt-hours when a 300 W stereo runs for 2.5 hours.
What is 0.75 kWh?
The point in a bouncing ball’s motion where its kinetic energy is at its maximum.
What is the lowest point of the bounce (just before it rises)?
The type of energy conversion that happens in a hydroelectric dam. (Three Kinds)
What is gravitational potential energy to kinetic energy to electrical energy?
The approximate percentage of energy lost as heat when moving up each level in the energy pyramid.
What is 90 percent?
The common name for crude oil and how it is obtained.
What is petroleum, and it is drilled from underground?
The efficiency of a light bulb that outputs 90 kJ of useful energy from 100 kJ of input.
What is 90 percent efficient?
A regular light bulb wastes about 90% of its energy as this type of unwanted energy.
What is thermal (heat) energy?
This type of power produces huge amounts of energy from small amounts of uranium, but creates radioactive waste.
What is nuclear power?
The term for the body’s ability to maintain a stable internal environment, such as sweating or shivering.
What is homeostasis?
The Canadian province with the largest reserves of oil sands
What is Alberta?
The efficiency of a vacuum that uses 200,000 J of input energy and wastes 140,000 J.
What is 30 percent?