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Earn 100

List the precautions that should be taken while measuring the length of an object using a scale.

Important Questions on Measurement

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Science>Physics>Measurement>Measurement of Length
The length of an arc of a circle having radius 15 cm is 20 cm. Hence its area of minor sector is _____ cm2.
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Science>Physics>Measurement>Measurement of Length
In a ⊙O,r if the angle subtended by the minor arc at the centre of the circle is θ, then the length of the minor arc l is _____.
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Science>Physics>Measurement>Measurement of Length

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The correct position of the eye to get the correct measurement of length is _____.

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Science>Physics>Measurement>Measurement of Length
While measuring the length of a pencil, the reading of the scale at one end is 5.5 cm and that at the other end is 17.2 cm. What is the length of the pencil?
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Science>Physics>Measurement>Measurement of Length
If the eye is not _____ above the point of measurement, we may get incorrect readings. (horizontally, vertically)
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Science>Physics>Measurement>Measurement of Length
While measuring the length of a geometry box, the reading at one end is 1.0 cm and the other end is 16.8 cm. What is the length of the geometry box? 
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Science>Physics>Measurement>Measurement of Length
What precautions will you take while measuring length of wooden box with a scale.
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Science>Physics>Measurement>Measurement of Length

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The correct measurement of the length of the card is :

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Science>Physics>Measurement>Measurement of Length
What precautions should be taken while measuring the length of a pencil using a ruler?
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Science>Physics>Measurement>Measurement of Length

How should we be careful while taking readings on a scale with the zero mark broken?

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Science>Physics>Measurement>Measurement of Length
The correct position of the eye for taking a correct measurement in the given picture is:

 

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Science>Physics>Measurement>Measurement of Length
Why would you not like to use a measuring tape made of an elastic material like rubber to measure distance? What would be some problems you would meet in telling someone about a distance you measured with such a tape?
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Science>Physics>Measurement>Measurement of Length
What precautions will you take while measuring the length of a stone block using a scale?
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Science>Physics>Measurement>Measurement of Length
While measuring length using a metre scale, the position of the eye does not affect the measurement.  
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Science>Physics>Measurement>Measurement of Length
While measuring the length of a matchbox, the reading at one end is 1.0 cm and the other end is 4.3 cm. What is the length of the matchbox? 
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Science>Physics>Measurement>Measurement of Length
Explain with a diagram how parallax error can arise.
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Science>Physics>Measurement>Measurement of Length
The eye of the observer should be _____ (horizontal/ vertical/ both horizontal and vertical) while taking a reading using ruler.
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Science>Physics>Measurement>Measurement of Length

Choose the right word and fill in the blank:

_____ (Litre/Metre) is the unit used to measure the length of the cloth required for making curtains.

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Science>Physics>Measurement>Measurement of Length
While measuring the length of a rod, the reading of the scale at one end is 10.0 cm and at the other end is 35.8 cm. What is the length of rod?
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Science>Physics>Measurement>Measurement of Length
How will you define an error? What are the different types of errors?