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Work is done by the man on the box as he pushes it across the floor.

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The movement of molecules that make up an object is called thermal energy.

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Anything that you can hear is sound. Sound is a type of energy. It travels by making vibrations in air, water, and solids. But it cannot travel through vacuum.

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Water and plants are renewable resources. Water is renewable through the water cycle.

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Do you have something that glows in the dark? What you see is light made by radiation.

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How can we communicate with astronauts on the space station? Radio waves are electromagnetic waves that exist and are transmitted without matter.

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Two boxes with the same mass require the same amount of force to be pushed across a particular distance. However, when more power is used, the work is done faster.

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Stretch a rubber band. Notice how it’s ready to spring back. You’ve added potential energy to it.

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Fossil fuels such as natural gas, crude oil, and coal are formed over a span of millions of years.

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You hear the water in a river rushing over the rocks. Then, you can see the rapids in the river through the trees as you walk closer.

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Fossil fuels are made from the remains of dead plants and animals.

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Thrust, lift, drag and weight are four aerodynamic forces that act on an aircraft in flight.

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Plants absorb energy from the Sun. Energy in plants is transferred through the food chain from one organism to the one that consumes it.

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In a thermal power plant, coal is burned to produce electricity.

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An example of convection of heat is when water heats up all the way through.

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A principle stating that energy cannot be created or destroyed, but can be altered from one form to another.

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Chemical energy is energy stored in the bonds of chemical compounds

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examples of conduction
After a car is turned on, the engine becomes hot.