D Answer the following questions in brief.
1. How does measurement help us in our day-to-day life?
2
Which type of watch is used to measure time intervals in a 200 metre race?
3.
When do we consider an object to be in motion?
4
Name three different types of motions and give one example of each.
5. State the difference between a 'periodic' and a 'non-periodic' motion.
Best answer will be Marked as BRAINLIEST ANSWER
Answers
Answer:
1. Measurement provides a standard for every day things and processes. From weight, temperature, length even time is a measurement and it does play a very important role in our lives. The money or currency we use is also a measurement. ... Thanks to these measurements present with us is the world is the same as we see today.
2. In order to measure the time in an athletics meet, stopwatches are used. It conveys the total time taken by the athletes to complete the race. In case it is not available, table clock or the wrist watches are used as a substitute for measuring the approximate time taken by them.
3. We consider an object in motion, when the object is moving .
4. Examples of different types of motion - examples
Types of Motion Examples:
2)Circular
a) Motion of satellites around planets. b) Motion of car turning to a curved track
3 Rotational
a) Motion of giant wheel b) Motion of wheels of moving vehicle
4 Periodic
a) Motion of simple pendulum b) Motion of Earth on its own axis.
Linear Motion. Rotary Motion. Oscillatory Motion.
4) Periodic motion : A motion which gets repeated after regular intervals of time is called a periodic motion.
Non-periodic motion : The motion which does not repeat itself after regular interval of time is called non-periodic motion.
Answer:
☆Are you from DAV public school 6th standard??☆