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Moving things & Materials Test 61
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Moving things & Materials Test 61

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  • Question 1/10
    1 / -0
    The Unit 1 Newton is equal to?
    Solutions

    * In SI unit force is one that causes an acceleration of 1 m s-2 to a mass of 1 kg.

    * This unit is known as newton : 1 N = 1 kg m s-2.

    * The unit of force can be easily derived from the formula F=MA. Which is basically second law of motion of newton.

  • Question 2/10
    1 / -0
    Select the correct statements from the following :
    A. Animals that have outside ears and hair on their body give birth to the young ones.
    B. Animals that do not have outside ears and hair on their body lay eggs
    C. Animals that do not have outside ears and hair on their body give birth to the young ones.
    D. Animals that have outside ears and hair on their body lay eggs
    Solutions
    Those animals whose ears you can see have hair on their body. These animals give birth to the young ones. Those animals that do not have ears on the outside do not have hair on their body. These animals lay eggs.
  • Question 3/10
    1 / -0
    A rectangular container given below is filled with a liquid heavier than water:
    Select the correct statement from the following about the liquid pressure.
    Solutions
    A rectangular container given below is filled with a liquid heavier than water:
    the correct statement from the following about the liquid pressure Pressure at C > Pressure at B> Pressure at A.
  • Question 4/10
    1 / -0
    Freely falling body is an example of
    Solutions

    A freely falling body is an example of both uniform acceleration and transitional motion

  • Question 5/10
    1 / -0
    A face of moon always keep hidden from us why?

    Solutions


    The synchronous rotation causes the moon to be present just one side to the earth all the time.

  • Question 6/10
    1 / -0
    Oxides of sulphur and nitrogen dissolve in rain water and form acids. Such rain is called:
    Solutions

    Oxides of sulphur and nitrogen dissolve in rain water and form acids. Such rain is called acid rain. It is very harmful for crops, buildings and soil.

  • Question 7/10
    1 / -0
    Which of the following element is not a metal?
    Solutions

     The metals such as Na and Mg are placed on the left hand side of the periodic table while as non-metals like sulphur and chlorine are placed on right hand side of the periodic table. Among the given elements Na, Fe and Mg are metals and Cl is non-metal.

  • Question 8/10
    1 / -0
    Combustion is a:
    Solutions

    A chemical process in which a substance reacts with oxygen to give off heat is called combustion.

  • Question 9/10
    1 / -0
    Who classified the elements as Triads?
    Solutions

     Johann Wolfgang Döbereiner was a German scientist who classified the elements with common properties into groups. He arranges three elements in a group and called them as triads but this classification was not found useful.

  • Question 10/10
    1 / -0
    The average salinity of sea water is
    Solutions

    Salinity is defined as the concentration of dissolved salt in a given volume of water. The average salinity of ocean or sea water is 3.5 % or 35 parts per thousand.

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