Length and mass introduction source.
Measuring instruments for length and mass.
In the past a common time measuring instrument was the sundial today the usual measuring instruments for time are clocks and watches for highly accurate measurement of time an atomic clock is used.
The other type is a steel measuring tape used by carpenters and other construction workers.
It is equal to the length of an average foot formerly 11 1 42 inches but now 12 inches.
Measuring tapes come in two varieties.
Several tools and methods exist for measuring mass.
Long measuring instruments.
Foot is the measure of length typically defined as 15 3 of the height of a human body with an average height of 160 cm.
This unit differed from place to place and trade to trade.
One type is made of cloth or plastic.
When we measure the distance between any two points in terms of width thickness depth and height we measure length.
Stop watches are also used to measure time in some sports.
This is used by those needing a flexible instrument with which to measure length such as a tailor or anyone measuring the circumference of an object.
A measuring instrument is a tool used to measure a magnitude or dimension in physics.
Inch is the measure of the thumb which was used to measure the length of items small for example the seam of a cloth length of paper etc.
In general there are three most measured magnitudes in the world of physics for high school level namely length mass and time and dimension.
These include balances scales newtonian based measurement devices measurement transducers vibrating tube mass sensors and the use of gravitational interaction.
All the substances around us can be measured by using various units like the mass of gold length of clothes the quantity of milk etc.
Determining mass means determining the amount of matter in an object of interest.
The most natural way to measure length is to compare it to some part of the body and for centuries people did just that the unit we call a foot has been used since ancient times.
In this video we will learn how to take measurements of length using a meter stick volume using a graduated cylinder and mass using a digital scale.
Various measuring instruments of length mass and time can be seen as follows.
Standard international si unit for measurement of length is meter.
For its part an inch was traditionally the width of an average thumb but edward ii of england ruled in the 14th century.
The standard instruments used nowadays to measure a length are ruler meter scale measuring tape vernier caliper and screw gauge.