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# Key Concepts in Physical Science

Across
The unit of energy inn the metric (SI) system. One joule is enough energy to push with a force of one newton for a distance of one meter.
At room temperature, gold is a _________ because the individual atoms are bound firmly to each other.
Temperature scale in which water freezes at 0 degrees and boils at 100 degrees.
Temperature scale in which water freezes at 32 degrees and boils at 212 degrees.
A unit of energy equal to 4.184 joules or the energy needed to heat 1 gram of water by 1 degree Celsius.
We have all heard that it's good to "__________ energy" and not waste it. (page 64)
Thermal energy that is moving.
Electric power plants do not ________ electrical energy. Energy cannot be created. (page 64)
The basic metric (SI) unit of mass
A small group of related things that work together.
Atoms are always ____________, vibrating around like drops of water on a hot griddle (page 54).
An instrument used to measure temperature.
A measurement of hot or cold that depends on the thermal energy in material.
Down
Holds its volume, but not its shape.
A push, pull or any action which has the ability to change motion.
A material property that tells how much energy is needed to change the temperature by 1 degree.
Energy that is due to difference in temperature in temperature. Thermal energy comes from kinetic energy individual atoms.
Flows like liquid, but can also expand or contract to fill a container.
The lowest temperature there can be, equal -273.3 degrees Celsius or -460 degrees Fahrenheit
The unit of force in the metric (SI) system.
A unit of mass smaller than a kilogram. One kg equals 1,000g.
A ____________ is a substance that is made up of more than one element.
A quantity that measures the ability to cause change in the physical system. Energy is measured in joules.
A pure substance that cannot be broken down into other elements.
The smallest particle of matter that retains the identity of its element, such as an atom of gold.