physics eoy - y9

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Accuracy

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22 Terms

1

Accuracy

Result that is close to the true value

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2

Precision

All results are very close to each other

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3

Interval

Quantity between readings

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4

Resolution

Smallest change in the quantity being measured

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5

Range

Minimum and maximum values

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6

Uncertainty

Interval within which the true value can lie

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7

Measurement error

Incorrect measurement of a quantity

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8

Random error

Reading varies each time

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9

Systematic error

Constant deviation in readings

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10

Repeatable

Getting the same result with the same method

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11

Reproducible

Getting the same results with a different method or by someone else

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12

Zero error

Reading doesn't start at zero

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13

Conductor

Material that allows heat energy to move through

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14

Insulator

Material in which heat energy doesn't move freely

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15

Energy transfer by conduction

Transfer of energy through a material depending on its thermal conductivity

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16

Specific heat capacity (SHC)

Amount of heat energy required to raise the temperature of 1kg of a substance by 1 degree Celsius

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17

Density

Mass per unit volume

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18

States of matter

Solid, liquid, gas with different properties

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19

Internal energy

Energy stored by the particles of a substance

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20

Specific latent heat (SLH)

Energy needed to melt or boil 1kg of a substance without changing its temperature

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21

Gas pressure and temperature

Increasing temperature increases gas pressure in a sealed container

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22

Gas pressure and volume

Pressure and volume are inversely proportional, described by Boyle's Law

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