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6th grade energy
VA 6th grade energy unit
| Question | Answer |
|---|---|
| There are _____ basic forms of energy? | 5 |
| Mechanical energy is a mass of moving ______. | molecules |
| The five forms of energy: | mechanical, thermal, chemical, electrical, and radiant. |
| All forms of energy are ______ and _______. | interchangeable, transferable |
| ________ and _______ are two states of energy. | Potential, kinetic |
| Thermal or _____ energy is individual molecules moving. | heat |
| Electrical energy involves the movement of ______ from one atom to another. | electrons |
| ________ energy is the movement of the atoms of a molecule as the join, separate, and rearrange. | Chemical |
| Most energy transformations produce _____. | heat |
| _______ energy is the movement of photons and other energy waves. | Radiant |
| The reason for energy transformations. | To get work done. |
| Energy is the capacity to do _______. | work |
| Stored energy is known as ______ energy | potential |
| Energy in action is known as ______ energy. | kinetic |
| Nuclear energy involves the joining and splitting of _____. | atoms |
| A parked car is an example of _____ _______. | potential energy |
| A moving car is an example of ______ _______. | kinetic energy |
| The higher the mountain the _______ the potential energy. | greater |
| Mechanical energy is the energy of ______ and of position. | motion |
| The faster an object moves the ______ energy it has. | more |
| The sum of an object's kinetic and potential energy is its ________ energy. | mechanical |
| Thermal energy is a special kind of ______ energy. | kinetic |
| The ______ an object is, the more thermal energy is has. | hotter |
| Thermal energy always moves from ______ objects to ______ objects. | hotter, cooler |
| Chemical energy is stored in things like.... | fossil fuels, wood, and food. |
| Electrical energy is a special kind of ______ energy. | kinetic |
| Lightning is an example of _______ energy | electrical |
| Light is an example of ______ energy. | radiant |
| Radio and television waves are examples of _____ energy. | radiant |
| Nuclear energy can be released by _______ or ______. | fission, fusion |
| Fusion is the process of.... | fusing, or combining, atoms into heavier atoms. |
| Fission is the process of.... | splitting atoms to make simpler atoms. |
| How do nuclear power plants produce energy? | By nuclear fission, or splitting uranium atoms. |
| _______ is the capacity to do work. | energy |
| everything that exists is either _______ or ______. | matter, energy |
| energy in action is _______ energy | kinetic |
| stored energy is __________ energy. | potential |
| When a boulder rolls down a hill ______ energy increases and ______ energy decreases. | kinetic, potential. |
| 3 types of potential energy | chemical, gravitational, and elastic |
| The sum of an objects kinetic and potential energy is its _________ energy. | mechanical |
| _______ energy is often wasted in an energy transformation. | thermal |
| microwaves and x-rays are examples of _______ energy | radiant |
| A stretched rubber band has ______ _______ energy. | stored mechanical |
| Petroleum, natural gas, and propane are examples of ______ ______ energy. | stored chemical |
| Hydropower uses _______ energy. | gravitational |
| The law of conservation states that energy is neither ______ nor _______. | created, destroyed |
| ________ is the amount of useful energy you get from a system. | efficiency |
| Sources of energy can be _______ or _______. | renewable, nonrenewable |
| Coal, petroleum, natural gas, and propane are examples of _________ energy sources. | nonrenewable |
| Hydropower, solar, and wind are examples of ______ energy sources. | renewable. |
| Electricity is a ________ source of energy. | secondary |
| ______ is the number one energy source used to generate electricity. | Coal |
| Electricity is sometimes called an _______ _____. | energy carrier |
| Fossil fuels are formed by this | the remains of plants |
| Two methods of coal mining: | surface mining, underground mining |
| Coal produces ______ ________, which is a greenhouse gas. | carbon dioxide |
| Acid rain happens when sulfur and oxygen mix to form ________ _________. | sulfur dioxide |
| Petroleum is often called _____ ____. | crude oil |
| Petroleum is formed from this | the remains of tiny sea plants and animals |
| This state produces more oil than any other. | Texas |
| The U.S. uses _____ oil than it produces. | more |
| Petroleum must be _____ before we can use it. | refined |
| Natural gas is a _______ of gases. | mixture |
| The main ingredient of natural gas is ______. | methane |
| Fertilizers, glue, paint, and laundry detergents all contain _______ _____. | natural gas |
| Propane is a ________ __________ gas. | liquefied petroleum |
| Under normal conditions propane is a _______, but under pressure it becomes a ________. | gas, liquid |
| Most propane is used by _________. | industry |
| Used fuel rods in nuclear power plants are ______. | radioactive |
| ________ is the simplest element known to man. | Hydrogen |
| Stars are primarily made from ________. | hydrogen |
| Hydrogen has the _____ energy content of any common fuel by weight, but has the ______ energy content by volume. | highest, lowest |
| Hydrogen _______ exist on Earth as a gas. | doesn't |
| Hydrogen is made by _________ it from water, biomass, or natural gas. | separating |
| _________ is any organic matter that can be used as an energy source. | Biomass |
| Examples of biomass | wood, crop, dead plants, animal waste |
| Biomass can be used to make ______ to fuel cars. | ethanol |
| Four ways to release the energy stored in biomass: | burning, bacterial decay, fermentation, and conversion to gas or liquid |
| ________ means changing a material into something else. | conversion |
| _________ energy is heat from within the Earth. | Geothermal |
| Geothermal energy is generated in the Earth's _____. | core |
| _________ energy is a type of geothermal energy. | Hydrothermal |
| _________ is energy that comes from the force of moving water. | Hydropower |
| Hydropower depends on the _______ cycle. | water |
| The sun is made up of _______ and _____ gas. | hydrogen, helium |
| The sun makes energy in its inner core in a process called nuclear _______. | fusion |
| ______ ________ are used to capture sunlight and change it into usable heat energy. | Solar collectors |
| A ______ solar house does not depend on mechanical equipment | passive |
| An ________ solar house uses special equipment to collect sunlight. | active |
| Two ways to make electricity from solar energy: | photovoltaic, solar thermal systems |
| _______ is air in motion. | Wind |
| Wind is caused by ______ heating of the Earth's surface. | uneven |
| Wind speed is measured by a wind gauge or an _______. | anemometer |
| Wind turbines use _____ to capture the wind's kinetic energy. | blades |
| ______ ______ are clusters of wind turbines used to produce electricity. | Wind farms |
Created by:
eowyn11