Week 14 - Energy (Part 4)
Introduction to Energy
Learning Target: I can explore relationships between kinetic energy, potential energy, mass, and speed and energy transformations.
Warm-Up (11/12/20)
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Word Wall
Kinetic Energy - The energy of motion
Potential Energy - Stored energy. The energy held by an object because of its position relative to other objects.
Mechanical Energy - The sum of the potential and kinetic energy
Mass - The quantity of matter within a body
Speed - The distance traveled per unit of time
Work - using a force to move an object
Energy - the ability to do work.
Law of conservation of energy - states that energy cannot be created or destroyed; it can only be changed from one form of energy to another.
Electrical Energy - energy transferred by an electric current (the movement of electrons or static electricity).
Sound Energy - energy transferred via sound waves and vibrating objects.
Thermal Energy - energy of an object due to its temperature caused by the internal motion of the particles.
Chemical Energy - energy stored in the bonds of atoms which is released when chemical reactions take place (example: Fuel, Food, Batteries).
Light Energy - energy transferred through waves and light particles (photons).
Kinetic Energy - energy an object possesses due to its motion.
Potential Energy - energy an object has because of its position. Also known as stored energy.
Gravitational Potential Energy - energy as a result of an object's height above the ground.
Elastic Potential Energy - energy stored when an object is squeezed, stretched, twisted, etc.
Mechanical Energy - energy of matter in motion.
Nuclear Energy - energy stored in an atom's nucleus.
Heat Transfer - The transfer of kinetic energy between two objects due to a temperature difference between the two.
Conduction - the transfer of heat by direct contact between two materials with different temperatures.
Conductors - a material through which energy can be easily transferred as heat. (Example: Metals)
Insulator - a material that is a poor energy conductor. (Example: Wood or Plastic)
Convection - the transfer of heat through movement of a fluid (liquid or gas).
Convection Current - the circular motion of the liquid or gas due to its density differences that result from temperature differences. The warmer areas of a liquid/gas expand and move farther apart, causing it to be less dense. Therefore warmer liquid/gas rises. The cooler areas of liquid/gas condense (come together), causing it to be denser. This causes cooler liquids/gases to fall or sink.
Radiation - the transfer of heat through matter or space as electromagnetic waves, such as visible light or infrared waves.
Specific Heat Capacity - defined as the amount of heat energy required to raise the temperature of 1 kilogram of a substance by 1°C. It is a measure of how much heat energy a particular substance can hold.
Temperature - measures of the average kinetic energy of all the particles within an object.
Fossil Fuels - nonrenewable energy sources including coal, petroleum, and natural gas.
Geothermal Energy - energy used from tapping into the Earth's internal heat.
Hydroelectric Energy - flowing water creates energy that can be captured and turned into electricity.
Nuclear Energy - created from the splitting of uranium atoms in a process called fission. Fission releases energy that can be used to make steam, and the steam is used to power a turbine to generate electricity.
Solar Energy - light and heat energy from the sun.
Wind Energy - capturing the wind by wind turbines and turning into electricity.
Biomass - the organic matter that makes up plants is known as biomass. Biomass can be used to produce electricity, transportation fuels, or chemicals.
Students will identify using a video guide the energy forms and transformations in the following film: Miniscule: Valley of the Lost Ants (Part 2)
types of energy slideshow.pptxHomework
Watch activator video(s)
Read Energy Chapter 9
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