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State, for each of the following physica...

State, for each of the following physical quantities, if it is a scalar or a vector. Volume, mass speed acceleration, density, number of moles, velocity, angular frequency, displacement, angular velocity.

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Scalars: Volume, mass, speed, density, number of moles, angular frequency.
Vectors: Acceleration, velocity, displacement, angular velocity.
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Knowledge Check

  • Which of type of is used in following statements p : A physical quantity is scalar or vector q : A number is multiple of 5 or 25

    A
    (i) Inclusive OR (ii) Exclusive OR
    B
    (i) Exclusive OR (ii) Inclusive OR
    C
    (i) Inclusive OR (ii) Inclusive OR
    D
    (i) Exclusive OR (ii) Exclusive OR

  • Assertion : When a particle moves in a circle with a uniform speed its acceleration is constant but the velocity changes. Reason : Angular displacement is not a axial vector.

    A
    Both Assertion & Reason are true & the Reason is a correct explanation of the Assertion.
    B
    Both Assertion and Reason are true but Reason is not a correct explanation of the Assertion.
    C
    Assertion is true but the Reason is false.
    D
    Assertion & Reason are false.
    • NCERT-MOTION IN A PLANE -EXERCISE
    1. State, for each of the following physical quantities, if it is a scala...

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    2. Pick out the two scalar quantities in the following list: force, angul...

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    3. Pick out the only vector quantity in the following list: Temperature...

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    4. State with reasons, whether the following algebraic operations with sc...

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    5. Read each statement below carefully and state with reasons, with it is...

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    6. Establish the following inequalities geometrically or otherwise , (...

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    7. Given vec A + vec B+ vec C + vec D =0, which of the following stateme...

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    8. Three girls skating on a circular ice ground of radius 200 m start fr...

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    9. A cyclist starts from the center O of a circular park of radius 1km, r...

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    10. On an open ground, a motorist follows a track that turns to his left b...

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    11. A passenger arriving in a new town wishes to go from the station to a ...

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    12. Rain is falling vertically with a speed of 30 ms^(-1) . A woman rides...

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    13. A man can swim with a speed of 4kmh^(-1) in still water. He crosses a ...

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    14. In a harbour, wind is blowing at the speed of 72 km //h and the flag ...

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    15. The ceiling of a long hall is 25 m high. What is the maximum horizont...

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    16. A cricketer can throw a ball to a maximum horizontal distance of 100m...

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    17. A stone tied to end of a string 80 cm long is whirled in a horizontal...

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    18. An aircraft executes a horizontal loop of radius 1 km with a steady sp...

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    19. Read each statement below carefully and state, with reasons, if it is ...

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    20. The position of a particle is given by vec r= 3.0 t hat i - 2.0 t^2 h...

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