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Flashcards in Chapter 3 Deck (15):
1

What is more affected by bias; quantitative or qualitative data?

Qualitative data

2

What makes the metric system a decimal system?

Powers of 10

3

Why can't measurements ever be completely right?

It's impossible to find the true value due to errors

4

What is the reason we can't get 100% precise measurements?

Random errors

5

Why might the same object change weight?

Gravity

6

How might one measure the volume of sand?

Use a gradated cylinder

7

Why can't you measure in between millimeters?

Not exact enough and can't get an accurate reading.

8

What can we use to measure things?

Number and unit

9

(T or F)
There is no need to measure something twice if you know that the tool you used is correct

False

10

(T or F)
Qualitative data is preferred to quantitative data

False

11

(T or F)
When measuring volume with a graduated cylinder, we do not assume that the object will soak up water

False

12

How many significant digits are in this number:
453.0?

3SD

13

How many significant digits are in this number:
0.700?

1SD

14

How many significant digits are in this number:
0.4567?

4SD

15

How many significant digits are in this number:
380?

2SD