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Force and Pressure Science - Force and Pressure

Jharkhand Board (JAC) - STD 8 - Science (Jharkhand - English Medium). 110 questions in this chapter.

Question types

Force and Pressure question types

110 questions across 7 question groups — pick any mix to generate a Science paper with step-by-step answer keys.

110
Questions
7
Question groups
5
Question types
Sample Questions

Force and Pressure questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Q 1M.C.Q. [I MARKS]1 Mark
Which of the following is not an example of the force of gravity?
  • A
    A leaf falling from a tree.
  • ✓
    A boy pushing a cart on a level plane.
  • C
    A diver jumping into a swimming pool.
  • D
    A stone falling from the top of a cliff.

Answer: B.

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Q 2M.C.Q. [I MARKS]1 Mark
Which of the following force is utilized in reducing air pollution by removing dust, soot and fly-ash particles from the smoke coming out of chimneys of factories?
  • A
    Magnetic force.
  • B
    Gravitational force.
  • ✓
    Electrostatic force.
  • D
    Frictional force.

Answer: C.

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Q 4M.C.Q. [I MARKS]1 Mark
The magnitude of atmospheric pressure is equal to the pressure exerted by a:
  • A
    $76\ mm$ tall column of mercury.
  • B
    $760\ mm$ tall column of alcohol.
  • ✓
    $76\ cm$ tall column of mercury.
  • D
    $760\ cm$ tall column of mercury.

Answer: C.

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Q 7Fill in the blanks: [1 M]1 Mark
Fill in the following blanks with suitable words: If the two forces applied to an object are equal and act in opposite directions, the net force acting on the object will be $............$
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Q 17true or false. [1 M]1 Mark
State whether the following statements are true or false: A drinking straw works on the pressure exerted by the liquid filled in a soft drink bottle in which it is placed.
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Q 32questions in on sentence. [1 M]1 Mark
A rocket has been fired upwards to launch a satellite in its orbit. Name the two forces acting on the rocket immediately after leaving the launching pad (Ignore the frictional force due to air resistance).
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