MEDIUM
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The shortest shadow cast by a vertical object on the ground always falls on the direction.

10.53% studentsanswered this correctly

Important Questions on Motion and Time

MEDIUM

Which of the following statements is/are correct concerning Time Zone in India?

1. There is one standard time for the whole country.
2. Andaman and Nicobar Islands and Lakshadweep Islands have different Time Zones.
3. Indian Standard Time (IST) is five and a half hours behind GMT.

Select the correct answer using the code given below :

EASY
Which of the following is not a unit of time?
EASY

Choose the odd one out giving reason.

 

EASY

How will you measure the side of a carrom board?

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EASY
Why cannot a foot length or cubit be used as a standard unit of length?
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Body parts give the same measurement when measured by different people.

EASY
Name any two measures used in ancient times.
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Name the non-standard units of measurement that were used by people in earlier times. Why do you think these units are not used these days?
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The hand span is a reliable method of measurement of length.
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Name two body parts of a person which can be used as units of measuring length.
MEDIUM
What did people in ancient times use to measure length?
EASY
Explain why, hand-span cannot be used as a standard unit of length.
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How was time calculated in earlier days? What does a calendar tell us?
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Why did people in ancient times realise the need for some fixed quantity of measurement?
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Why cannot we use the handspan to measure the length of any object?
MEDIUM
Elaborate the ways in which people in ancient times used to measure length. Also mention the importance or need of accurate measurement.
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Why a foot-step cannot be used as a standard unit of length?
MEDIUM
How did people measure the length and weight of things in olden days?
EASY
Cotyledons are also called-
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Discuss why non-standard units cannot be used for accurate measurements.