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Science Ch 5 Quiz1-3
| Question | Answer |
|---|---|
| energy | the ability to cause change |
| kinetic energy | energy due to motion |
| kinetic energy depends on | speed and mass |
| potential energy | stored energy due to the interactions between objects or particles |
| 3 forms of potential energy | gravitational, elastic, chemical |
| gravitational energy depends on | height and weight |
| elastic potential energy | energy stored in objects that are compressed or stretched |
| chemical potential energy | energy stored in the chemical bonds between atoms |
| work | the transfer of energy that occurs when a force is applied over a distance |
| work depends on | force and distance |
| mechanical energy | total energy due to large-scale motions and interactions ex shooting baskets |
| sound energy | energy that sound carries ex playing a guitar |
| thermal energy | energy due to motion of particles that make up an object ex heating |
| electric energy | energy that an electric current carries ex appliances |
| radiant energy | light energy that electromagnetic waves carry ex microwaves and radio waves |
| nuclear energy | energy that is stored in the nucleus of an atom ex sun |
| energy transformations | changes between forms of energy |
| law of conservation of energy | energy cannot be created or destroyed |
| friction | a force that resists the sliding of two surfaces that are touching |
| friction of a bike causes what energy transformation | mechanical into thermal |
| how do you reduce friction | add a lubricant |
| all forms of energy can be transformed into | thermal energy |
| waste energy | thermal energy that can't be used |
| all energy can be traces back to | the sun |
| most energy you use everyday is in the form of | electric energy |
| electric power plants involve | thermal, chemical, mechanical, and electric energy |
| nonrenewable energy resource | an energy resource that is available in limited amounts or that is used faster that it is replaced |
| fossil fuels | the remains of ancient organisms that can be burned as an energy source. most common nonrenewable energy resource |
| 3 types of fossil fuels are | coal, natural gas, and petroleum |
| renewable energy resource | an energy resource that is replaced as fast as, or faster than, it is used |
| most used energy resource is | falling water |
| hydroelectric power plants | transforms kinetic energy from falling water into electric energy |
| 2 examples of renewable energy resource | hydroelectric power plants and solar energy |
| inexhaustible energy resource | an energy resource that cannot be used up ex solar, biomass and wind |
| solar cells | transform solar or radiant energy into electric energy |
| wind energy | convertsckinetic energy and wind into electric energy |
| geothermal energy | thermal energy inside the earth |
| most of energy we use comes from | fossil fuels |
Created by:
2018grellerj
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