force and pressure - post 3

In today's class, we will revise what we have learned so far:

The blog has some questions you will answer. You may use the previous blogs to answer them. DO THE WORKSHEET IN YOUR SCIENCE NOTEBOOK, UNDER THE HEADING -WORKSHEET (POST 3)

You may also save the Worksheet as a Word file.


Drill:

1. Two boys pull a rope from two ends with a force equal to 100N each. What is the resultant force?

2. A body is acted upon by two forces of 200N and 300N, in the same direction. What is the resultant force acting on it?

3. If several forces act on a body in different directions, in which direction will the body move?

4. What is the resultant force of the two forces F1 and F2 acting on a body in the opposite directions?

5. What is the S.I unit of force?

6. The force exerted by one object on another by virtue of their masses is__________.

7. A spring balance is used for measuring____________.

8. Application of force can change the _____,______ and_______ of an object.

9. Force exerted by our muscle is called__________.

10. Name the force to collect scrap iron from the garbage.
ANSWERS-

 1. zero
2.500N
3.in the direction wheere the resultant force is maximum
4.F1- F2
5.Newton
6. gravitational force
7. weight of an object 
8.shape,size,position
9. muscular force
10. magnetic force

Comments

  1. Varun negiApril 17, 2020 at 8:56 AM

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  3. Varun negiApril 17, 2020 at 8:58 AM

    Good morning Ma'am I am Varun negi

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  4. Krishna GhoshApril 17, 2020 at 8:59 AM

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  5. unknownApril 17, 2020 at 9:03 AM

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  13. SudhirApril 17, 2020 at 9:17 AM

    Good morning ma'am I'm akshat Rauthan class 8D

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  14. Achyut TripathiApril 17, 2020 at 9:28 AM

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  22. PrabhgunApril 17, 2020 at 9:43 AM

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  25. PreetikaApril 17, 2020 at 9:45 AM

    GOOD MORNING BOYS! I AM SURE YOU ALL ARE DOING ALL THE WORK SENT IN SCIENCE IN YOUR SCIENCE NOTEBOOK. PLEASE KEEP LEARNING THE QUESTIONS-ANSWERS ALSO. YOU WILL SOON HAVE A TEST ON THE CHAPTERS DONE.

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  26. Akash DcostaApril 17, 2020 at 9:46 AM

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  31. Mohd Zulqar NainApril 17, 2020 at 10:00 AM

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  32. Daksh martinApril 17, 2020 at 10:06 AM

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    1. PreetikaApril 17, 2020 at 10:10 AM

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    2. PreetikaApril 17, 2020 at 10:14 AM

      Good morning Daksh , this is the second time you are attending the science class. Irequest you to be reguar.

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  33. AmaanApril 17, 2020 at 10:12 AM

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    Janav Jain

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  38. UnknownApril 17, 2020 at 10:31 AM

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  39. Simon josephApril 17, 2020 at 10:33 AM

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