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Force and Pressure Test - 19

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Force and Pressure Test - 19
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Weekly Quiz Competition
  • Question 1
    1 / -0
    When a rubber ball is pressed between hands, its shape changes. This happens because of
    Solution
    Unbalanced forces from the hands press the ball from two sides. This causes the shape of the ball to change.
  • Question 2
    1 / -0
    Which of the following represents the SI unit of force? 
    Solution
    Option C is correct.

    $$ F= ma$$
    In S.I unit system,
    unit of force is $$kg\ m/s^2= Newton$$
    S.I unit of Force is newton and it is represented by $$N$$.
  • Question 3
    1 / -0
    Identify the action that can cause motion of a book placed on a table.
    Solution
    The action involved in moving a book placed on a table can be pulling, pushing or lifting for which force is required.
  • Question 4
    1 / -0
    Which of the following actions can be grouped as push?
    a. A cricket ball hit by a batsman.
    b. A football player kicking the ball.
    c. A girl is shutting the open door of a refrigerator. 
    Solution
    All the above examples can be grouped as push. As the force is applied to move the object away.
  • Question 5
    1 / -0
    Identify the type of force involved when loaded cart is moved.
    Solution
    To move a loaded cart we have to pull it . Hence action involved is as pulling.

  • Question 6
    1 / -0
    Which of the following actions can be grouped as pull:
    a. Moving a loaded cart
    b. Applying brakes while driving car
    c. Drawing a bucket of water from a well
    Solution
    For moving a loaded cart  and drawing a bucket of water from a well, the action involved is pulling hence can be grouped as Pull.

  • Question 7
    1 / -0
    Identify the type of force involved in opening the door of refrigerator.
    Solution
    The action involved to open the door of the refrigerator is pulling because the door is moving towards us. Force is applied by our arm to PULL the door of the refrigerator. 
  • Question 8
    1 / -0
    Group the following examples as a pull or a push or both?
    (i) Opening a drawer
    (ii) Opening or shutting a door
    (iii) Hitting a ball
    Solution
    To open a drawer action involved is pull, for opening and shutting a door both action is involved, hitting a ball pushing involved.
  • Question 9
    1 / -0
    Identify the action involved when a magnet attracts a piece of iron towards it.
    Solution
    When a magnet is placed near to the pieces of iron, it pulls the pieces of iron towards itself due to it's magnetic field action . So the action involved is pulling.
  • Question 10
    1 / -0
    Fill in the blanks:
    An interaction of one object with another object results in a _________ between the two objects.
    Solution
    When one object interacts with another object they exert force on each other, either towards or away from each other.
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