Question

Measuring of time is more difficult than measuring length . Do you agree? Give reason to support your answer

Answer 1

YES BECAUSE WE HAVE SPECIFIC TOOLS AND A PROPER SYSTEM THIS TIME TO CALCULAT LEGENTH CAUSE WE CAN OWN SELF USE THAT TOOL MEASURE LONG DISTANCES TOO .

but time we don't know what is it completely no any device to count time . 
no any proper system 

Answer 2

Well, Yes. Measuring time is difficult than measuring length.

At your age, (I see you are age 12), you can consider the following points:

→ For measurement of length, we can use any standard measuring instrument like a ruler.

Suppose you want to measure the length of a wooden block. You can measure it easily without any much difficulty.

The wooden block is there with you. It's not going anywhere by itself. You can measure the length at any time you want.

Also, you can physically define and unit of length.

→ Measuring Time is a bit complicated.

Time is not stationary (at not too extreme conditions). It flows.

It is a concept which is not physical. You need a kind of watch to measure it. And you need to be accurate while doing it.

For example, consider your stopwatch. It's very difficult to measure exactly 1.00 second, isn't it?

So, we can say that measuring time is more difficult than measuring length.


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The information I'm going to give in this section is only for your information. Here I go outside your school syllabus.

If you are not able to understand it, then don't worry. It's too difficult to understand it at your age. It requires some concepts taught at higher levels.

→ Length:

1 meter is formally defined as follows:

♦ The distance travelled by light in vacuum in the time interval of (1/299792458) of a second is called 1 meter.

As you see, the definition of length is dependent on time.

Here we define time:

→ Time
1 second is defined as follows:

♦ The duration of 9192631770 periods of radiation corresponding to the transition between two hyperfine levels of Cesium-133 atom is exactly 1 second.

This means that in Cesium-133 atom, there is radiation emitted 9,192,631,770 times in 1 second.

We literally count the number of radiation periods. Based on that, we know when 1 second has elapsed.

This is the basic principle behind atomic clocks.

Atomic clocks are highly accurate. They won't lose a second for few billions of years.

→ So, measurement of Length might seem easy, but it's dependent on time.

However, for practical purposes, you can just use a ruler and measure it. But for time, you will still need to go by definition.