Chapter 1.1 - Practical Skills Flashcards

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1
Q

Significant figures: 30 kW

A

1

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2
Q

Significant figures: 30 000 W

A

Could have 1,2,3,4,5

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3
Q

Significant figures: 3x10^4 W

A

1

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4
Q

Significant figures: 30.0 kW

A

3

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5
Q

Significant figures: 3.00 W

A

3

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6
Q

Significant figures: 3.0 W

A

2

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7
Q

Things to include on a graph (6)

A
  • Good choice of scale
  • Labelling axes
  • Accurate plotting of points
  • Line or curve of best fit
  • Calculation of gradient
  • Determining y intercept
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8
Q

Formula for uncertainty

A

measurement error / measured reading (x100%)

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9
Q

Formula for percentage error

A

(experimental value - accepted value) / accepted value

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