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Unit - 4.1 Energy And Work PHYSICS - Unit - 4.1 Energy And Work

ICSE - STD 8 - PHYSICS (ICSE - English Medium). 32 questions in this chapter.

Question types

Unit - 4.1 Energy And Work question types

32 questions across 5 question groups — pick any mix to generate a PHYSICS paper with step-by-step answer keys.

32
Questions
5
Question groups
5
Question types
Sample Questions

Unit - 4.1 Energy And Work questions

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

Q 1MCQ1 Mark
When is the work done in the following situation :
A boy pushing a wall
A girl carrying a school bag on her shoulders
A stone falling freely
A boy climbing up the stairs
  • A
    (i) and (ii)
  • B
    (i) and (iii)
  • C
    (ii) and (iv)
  • ✓
    (iii) and (iv)

Answer: D.

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Q 2MCQ1 Mark
30 Joules work is done, when a force ‘F’ causes a displacement of 5 m. The magnitude of force is :
  • A
    6 pascal
  • ✓
    6 newton
  • C
    6 newton-meter
  • D
    none of these

Answer: B.

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Q 4MCQ1 Mark
The work done by a body is the product of force and :
  • A
    distance
  • B
    speed
  • ✓
    displacement
  • D
    velocity

Answer: C.

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Q 21Match the following.5 Marks
Column AColumn B
1. The term used when a force causes displacement in a body in its own direction.(a) No work done
2. The ability to do work.(b) Joule
3. SI unit of work or energy.(c) Energy
4. Displacement caused by a force at right angles to its own direction.(d) Work
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