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Motion in a Plane

Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.

Scalars and Vectors

Subtopic

Scalars and Vectors under Motion in a Plane for Grade 11 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Two vectors A⃗\vec{A} and B⃗\vec{B} are perpendicular. Their scalar product is:

    A.

    ABAB

    B.

    −AB-AB

    C.

    0

    D.

    1

  2. 2.

    What is the magnitude of vector R⃗=5i^+12j^\vec{R} = 5\hat{i} + 12\hat{j}?

    A.

    17

    B.

    13

    C.

    7

    D.

    169

  3. 3.

    The dot product is also known as:

    A.

    Vector product

    B.

    Scalar product

    C.

    Cross product

    D.

    Tensor product

Download the worksheet for Motion in a Plane - Scalars and Vectors to practice offline. It includes additional chapter-level practice questions.

Resolution of Vectors

Subtopic

Resolution of Vectors under Motion in a Plane for Grade 11 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Which of these is the correct unit vector notation for a vector V⃗\vec{V} with magnitude VV and angle θ\theta with the x-axis?

    A.

    V⃗=Vsin⁡θi^+Vcos⁡θj^\vec{V} = V\sin\theta\hat{i} + V\cos\theta\hat{j}

    B.

    V⃗=Vcos⁡θi^+Vsin⁡θj^\vec{V} = V\cos\theta\hat{i} + V\sin\theta\hat{j}

    C.

    V⃗=Vtan⁡θi^+Vj^\vec{V} = V\tan\theta\hat{i} + V\hat{j}

    D.

    V⃗=Vi^+Vj^\vec{V} = V\hat{i} + V\hat{j}

  2. 2.

    The component of a 10 N10 \, N force along an axis inclined at 90∘90^\circ to the force is:

    A.

    10 N10 \, N

    B.

    5 N5 \, N

    C.

    0 N0 \, N

    D.

    102 N10\sqrt{2} \, N

  3. 3.

    If a vector A⃗\vec{A} is resolved into AxA_x and AyA_y, then the magnitude AA is given by:

    A.

    Ax+AyA_x + A_y

    B.

    Ax+Ay\sqrt{A_x + A_y}

    C.

    Ax2+Ay2\sqrt{A_x^2 + A_y^2}

    D.

    (Ax2+Ay2)2(A_x^2 + A_y^2)^2

Download the worksheet for Motion in a Plane - Resolution of Vectors to practice offline. It includes additional chapter-level practice questions.

Projectile Motion

Subtopic

Projectile Motion under Motion in a Plane for Grade 11 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Ignoring air resistance, which component of the velocity vector remains constant throughout the flight?

    A.

    The vertical component

    B.

    The horizontal component

    C.

    Both components

    D.

    Neither component

  2. 2.

    A particle is projected with velocity uu at an angle θ\theta. The speed of the particle after time tt is given by:

    A.

    (ucos⁡θ)2+(usin⁡θ−gt)2\sqrt{(u \cos \theta)^2 + (u \sin \theta - gt)^2}

    B.

    u−gtu - gt

    C.

    ucos⁡θu \cos \theta

    D.

    usin⁡θ−gtu \sin \theta - gt

  3. 3.

    The time of flight depends on which component of the initial velocity?

    A.

    Horizontal component

    B.

    Vertical component

    C.

    Resultant velocity only

    D.

    None

Download the worksheet for Motion in a Plane - Projectile Motion to practice offline. It includes additional chapter-level practice questions.

Uniform Circular Motion

Subtopic

Uniform Circular Motion under Motion in a Plane for Grade 11 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    The ratio of angular speed of a second hand to a minute hand of a clock is:

    A.

    1:601:60

    B.

    60:160:1

    C.

    1:11:1

    D.

    3600:13600:1

  2. 2.

    In UCM, which of the following remains constant in magnitude but changes in direction?

    A.

    Angular displacement

    B.

    Linear velocity

    C.

    Radius

    D.

    Time period

  3. 3.

    If a particle moves in a circle of radius RR and its speed is vv, the time taken for one revolution is:

    A.

    R/vR/v

    B.

    2πR/v2\pi R/v

    C.

    v/Rv/R

    D.

    v/2πRv/2\pi R

Download the worksheet for Motion in a Plane - Uniform Circular Motion to practice offline. It includes additional chapter-level practice questions.

Motion in a Plane - CBSE Class 11 Physics Notes & Revision | Krit.club