Precision in Measurements

1
Precision in Measurements

• How to read a scale

2
What is the length of the rectangle?
0
1
2
3
4
cm

• 2.82 cm
• 3.30 cm
• 0.81 cm

3
What is the volume of water?
30

• 26.9 mL
• 21.7 mL
• 8.0 mL

20
10
4
What is the mass measurement?
g
g
0
1
2
3
4
5
6
7
8
9
10
g
5
Answers to previous slide

• First mass measurement
• 222.01 g
• Second mass measurement
• 158.51 g