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physics > practical determining density > Flashcards

practical determining density Flashcards

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1
Q

what can be used to measure dimensionsnof an object

A

ruler, micrometer, or vernier callipers

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2
Q

how do you determine the volume of a regualryl shaped object

A

measure dimensions

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3
Q

how do you determine volume of an irregularly shaped object

A

displacement technique

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4
Q

what apparatus is used to measure mass

A

balance

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5
Q

to calculate density what two measurements do you need

A

mass and volume

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6
Q

what is the formula to calculate density

A

mass/volume

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7
Q

how do you determine the volume of an irregularly shaped object

A

add it to a displacement can filled of water, add the object collecting the displaced water in a measuring cylinder, the volume of water collected is the volume of the object

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8
Q

what is the unit for mass

A

g

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9
Q

what is thr unit of volume

A

cm cubed

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10
Q

what is the unit for density

A

g/cm cubed

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11
Q

how do you determine mass of a liquid

A

add a beaker to a balance and det to 0, then add liquid recording the mass

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12
Q

what is the density of water

A

1g/ cmcubed

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13
Q

what piece of equipment can be used to measure lenghts more accurately than a ruler

A

vernier callipaers

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14
Q

what js the resolution of a ruler

A

1mm

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15
Q

what happens yo accuracy when higher resolution apparatus is used

A

increases

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16
Q

what is zero error

A

when a piece of apparatus gives a false reading whem the true value is 0

17
Q

how can a zero error on a ablance be connected

A

record the calue on the balance when it should be zero, subtract this value from each mass recorded

18
Q

when measuring the volume of an irregularly shaped object how many an error occur

A

the water level not at the same level as the spout, not all the displcaed water is collected in the measuring cylinder, eye position too high or low when measuring volume

physics (11 decks)

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