name two instruments that can be used to measure length.explain how a ruler can be used to measure length.
Dear Student,
The instruments that can be used to measure length are:
• Ruler
• Vernier caliper
We should follow these points while using a ruler to measure any length:
• First place the ruler along the line you wish to measure as close to it as possible.
• Now you should keep your eye exactly above the point at which your making your measurement. Its better one keep one eye closed while making the measurement.
• Try and make three measurements and take their average to get an accurate measurement..
• Preferably a non metallic ruler(like plastic or glass) is to be used in extreme temperatures,to avoid errors arising from thermal expansion and contraction of the metallic ruler.
Regards
The instruments that can be used to measure length are:
• Ruler
• Vernier caliper
We should follow these points while using a ruler to measure any length:
• First place the ruler along the line you wish to measure as close to it as possible.
• Now you should keep your eye exactly above the point at which your making your measurement. Its better one keep one eye closed while making the measurement.
• Try and make three measurements and take their average to get an accurate measurement..
• Preferably a non metallic ruler(like plastic or glass) is to be used in extreme temperatures,to avoid errors arising from thermal expansion and contraction of the metallic ruler.
Regards