1. The Mission Covenant Church Holm Glad College
Micrometer
The Mission Covenant Church Holm Glad College

2. The Mission Covenant Church Holm Glad College
Micrometer
This is a micrometer.
You are going to learn how to use it.
The Mission Covenant Church Holm Glad College

3. The Mission Covenant Church Holm Glad College
Micrometer
This is the 1 mm scale
0.5 mm is further divided
into 50 divisions
This is the 0.5 mm scale
i.e. 1 div = 0.01 mm
The Mission Covenant Church Holm Glad College

4. The Mission Covenant Church Holm Glad College
Micrometer
First check the zero reading
The zero reading is
-0.02 mm
The Mission Covenant Church Holm Glad College

5. The Mission Covenant Church Holm Glad College
Micrometer
The reading now is
4.06 mm
The Mission Covenant Church Holm Glad College

6. The Mission Covenant Church Holm Glad College
Patrick Wong:
Micrometer
So the accurate
measurement is
4.06 mm- (-0.02) mm
The Mission Covenant Church Holm Glad College

7. The Mission Covenant Church Holm Glad College
Micrometer
What is the reading?
The Mission Covenant Church Holm Glad College

8. The Mission Covenant Church Holm Glad College
Micrometer
Click the best answer.
( ) mm
( ) mm
( ) mm
( ) mm
The Mission Covenant Church Holm Glad College

9. The Mission Covenant Church Holm Glad College
Try again!!
Continue ?
The Mission Covenant Church Holm Glad College

10. The Mission Covenant Church Holm Glad College
Excellent !!
You are right !
The Mission Covenant Church Holm Glad College