Chapter 1.1 - Practical Skills Flashcards
1
Q
Significant figures: 30 kW
A
1
2
Q
Significant figures: 30 000 W
A
Could have 1,2,3,4,5
3
Q
Significant figures: 3x10^4 W
A
1
4
Q
Significant figures: 30.0 kW
A
3
5
Q
Significant figures: 3.00 W
A
3
6
Q
Significant figures: 3.0 W
A
2
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
8
Q
Formula for uncertainty
A
measurement error / measured reading (x100%)
9
Q
Formula for percentage error
A
(experimental value - accepted value) / accepted value
