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19 Cards in this Set
- Front
- Back
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thermometer
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used to measure the temperature. its made of a glass tube with a small bulb which contains a liquid mostly mercury or colored alchohol that exands and rises when the tempeature increases
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quantitative measurment
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Quantitative measurements involve using an instrument or tool such as a metric ruler for distances, a graduated cylinder for volume, and a balance for mass. For counting things, we usually just use our brain to keep track of how many, but there are times when we might have to use a “counter” – a tool that keeps track of how many.
Quantitative measurements not |
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accuracy
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Accuracy: You can be accurate every time you do an experiment even though there might be multiple errors in the way the experiment was conducted. Thus, for the inaccurate method, your result is accurate, but it is not precise.
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precision
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Precision: When scientists perform an experiment multiple times, with no errors in its method, and they receive similar results, they are precise. In other words, although they didn't hit the bull's eye (i.e. they weren't accurate), they were somewhat close to the actual result and thus precise.
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density
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The mass density or density of a material is defined as its mass per unit volume
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celsius scale
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celsius is a scale and a unit to measure temerature. the degree celsius is used to inicate the amount of temperature in celcius
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kelvin sacle
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same as celsius but in kelvin.
k=c+273 c=273-k c-<f-32>5/9 f=c*9/5>+32 |
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heat
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heat is the form of energy that flows between wo forms of matter due to the difference in temperature. denoted by Q
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tempurature
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temperature is the property of matter which reflects the quantity of energy of motion of the component particles
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absolute zero
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lowest possible state that matter can exist in
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matter
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anything that has mass and occupis place
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mass
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quantity of inertia possesed by an object or the proportion between acceleration and force referred to in newtons second law of motion
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weight
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the force with which the body is attracted to the earth or any other celestial body.
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volume
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amount of space occupied by a three dimensiona object.expressed in cubic units
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pure substance
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a substance which is pure. which doesnt have any residue or dirt present in it
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atom
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the smallest particle o matter which is the structural and functional unit of matter
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molecule
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a number of atoms combine to form molecules
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element
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a number of atoms having the smae properties form element
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compound
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they are atoms having different properties
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