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Hazrin Shah Bin Hj Azahari 08B0912
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LENGTH Hazrin Shah Bin Hj Azahari 08B0912 Mohammad Dedyardie Takong 08B0904 OBJECTIVES: Identify rules, meter rule, micrometer screw gauge, vernier calipers and ... – PowerPoint PPT presentation
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Title: Hazrin Shah Bin Hj Azahari 08B0912
1
LENGTH
- Hazrin Shah Bin Hj Azahari 08B0912
- Mohammad Dedyardie Takong 08B0904
2
OBJECTIVES
- Identify rules, meter rule, micrometer screw
gauge, vernier calipers and measuring tape. - Use and describe how to use ruler, micrometers,
vernier scales and calipers to determine length. - Specify correct units for shorter and longer
lengths.
3
LENGTH
INSTRUMENTS
UNITS
4
UNITS OF LENGTH
metre
centimetre
kilometre
millimetre
5
Micrometer screw gauge
INSTRUMENTS
Vernier caliper
Ruler
Measuring tape
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Vernier calipers
- What is it used for?
- To measure the external
- and internal diameter of
- object
- Example
- External and internal
- diameter of a beaker
- http//members.shaw.ca/ron.blond/Vern.APPLET/
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Micrometer screw gauge
- What is it used for?
- To measure very small
- value to the nearest
- 0.01 mm
- Example
- the thickness of a
- paper
- http//members.shaw.ca/ron.blond/Micrometer.APPLET
/
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Micrometre screw gauge Example To find the
thickness of a paper
- metre
- Centimetre
- Millimetre
- Kilometre
Use to measure very small value
Vernier calipers Example To measure the
internal length external length
Units commonly used
Length
Use to measure the internal and external diameter
of object
Instruments used
- Metre rule
- Measuring tape
- Vernier caliper
- Micrometre screw gauge
Use to measure short length
Use to measure longer length
Measuring tape Example Length of a door
Ruler Example Width of a book
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