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Exploring Forces Science - Exploring Forces

Gujarat Board (GSEB) - STD 8 - Science (GSEB - English Medium). 131 questions in this chapter.

Question types

Exploring Forces question types

131 questions across 9 question groups — pick any mix to generate a Science paper with step-by-step answer keys.

131
Questions
9
Question groups
5
Question types
Sample Questions

Exploring Forces 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
Assertion (A): The force due to air in a column of the height of the atmosphere and area 15 cm × 15 cm (nearly equal to the area of your head) is nearly equal to the force of gravity on an object of mass 225 kg, then it is also bearable.
Reason (R): The atmospheric pressure is neutralised by the force of gravity experienced by us.
  • A
    Both (A) and (R) are true, and (R) is the correct explanation of (A).
  • B
    Both (A) and (R) are true, but (R) is not the correct explanation of (A).
  • ✓
    (A) is true, but (R) is false.
  • D
    (A) is false, but (R) is true.

Answer: C.

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Q 2M.C.Q. [I MARKS]1 Mark
Assertion (A): In the game of tug of war, sometimes the rope doesn’t seem to move to any side even if strong forces are applied from both sides.
Reason (R): Equal force applied from opposite sides on any object makes the net applied force zero.
  • ✓
    Both (A) and (R) are true, and (R) is the correct explanation of (A).
  • B
    Both (A) and (R) are true, but (R) is not the correct explanation of (A).
  • C
    (A) is true, but (R) is false.
  • D
    (A) is false, but (R) is true.

Answer: A.

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Q 3M.C.Q. [I MARKS]1 Mark
The force is always attractive in nature and extends to infinity
  • A
    magnetic force
  • B
    electrostatic force
  • ✓
    gravitational force
  • D
    frictional force

Answer: C.

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Q 23questions in short. [3 marks ]3 Marks
If we place some objects on water, some of them float, while others fall to the bottom. The gravitational force of the Earth is acting on all objects, so why don’t all objects fall to the bottom?
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Q 29questions in details [4 marks ]4 Marks
A ball is released from the point P and moves along an inclined plane and then along a horizontal surface as shown in the figure. It comes to a stop at point A on the horizontal surface. Think of a way so that when the ball is released from the same point P, it stops (i) before the point A, (ii) after crossing the point A.
Image
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Q 30questions in details [4 marks ]4 Marks
If a ball is thrown upwards, it slows down, stops momentarily, and then falls back to the ground. Name the forces acting on the ball and specify their directions.
1. During its upward motion
2. During its downward motion
3. At its topmost position
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Q 36Match the Following.4 Marks
Column A (Type of Force)Column B (Example)
Q.1. Muscular force(a) A cricket ball stopping on its own just before touching the boundary line
Q.2. Magnetic force(b) A child lifting a school bag
Q.3. Frictional force(c) A fruit falling from a tree
Q.4. Gravitational force(d) A compass needle pointing North
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Q 37Match the Following.4 Marks
Column IColumn II
Q.1. Newton(i) Non-contact force
Q.2. Magnetic force(ii) Unit of force
Q.3. 1 kilogram(iii) Net force acting on a body
Q.4. Resultant force(iv) 9.8 N
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