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Space, Time and Motion

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

Kinematics

Subtopic

Kinematics under Space, Time and Motion for Grade 11 IB.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    A vector is a quantity that has:

    A.

    Only magnitude

    B.

    Only direction

    C.

    Both magnitude and direction

    D.

    Neither magnitude nor direction

  2. 2.

    An object starts with u=0 m s−1u = 0 \text{ m s}^{-1} and has a=10 m s−2a = 10 \text{ m s}^{-2}. What is its velocity after it has traveled 20 m20 \text{ m}?

    A.

    10 m s−110 \text{ m s}^{-1}

    B.

    20 m s−120 \text{ m s}^{-1}

    C.

    40 m s−140 \text{ m s}^{-1}

    D.

    400 m s−1400 \text{ m s}^{-1}

  3. 3.

    Which of the following is defined as 'total distance divided by total time'?

    A.

    Instantaneous speed

    B.

    Average speed

    C.

    Instantaneous velocity

    D.

    Average acceleration

Download the worksheet for Space, Time and Motion - Kinematics to practice offline. It includes additional chapter-level practice questions.

Forces and Newton's Laws

Subtopic

Forces and Newton's Laws under Space, Time and Motion for Grade 11 IB.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    If an object has an acceleration of 0 m s−2m\,s^{-2}, which of the following MUST be true?

    A.

    The object is at rest

    B.

    The object is moving at constant velocity

    C.

    The net force on the object is zero

    D.

    There are no forces acting on the object

  2. 2.

    The tendency of an object to resist changes in its state of motion is called:

    A.

    Acceleration

    B.

    Inertia

    C.

    Force

    D.

    Momentum

  3. 3.

    What is the mass of an object that weighs 490 N on Earth? (Take g=9.8 m s−2g = 9.8\,m\,s^{-2})

    A.

    50 kg

    B.

    49 kg

    C.

    4900 kg

    D.

    5 kg

Download the worksheet for Space, Time and Motion - Forces and Newton's Laws to practice offline. It includes additional chapter-level practice questions.

Work, Energy and Power

Subtopic

Work, Energy and Power under Space, Time and Motion for Grade 11 IB.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    A constant force of 10 N10\text{ N} moves an object at a constant speed of 5.0 ms−15.0\text{ ms}^{-1}. What is the power delivered by the force?

    A.

    2.0 W2.0\text{ W}

    B.

    50.0 W50.0\text{ W}

    C.

    0.5 W0.5\text{ W}

    D.

    15.0 W15.0\text{ W}

  2. 2.

    Which of the following is NOT a unit of energy?

    A.

    Joule

    B.

    Watt-second

    C.

    Newton-meter

    D.

    Newton per meter

  3. 3.

    The velocity of an object is tripled. Its kinetic energy increases by a factor of:

    A.

    33

    B.

    66

    C.

    99

    D.

    2727

Download the worksheet for Space, Time and Motion - Work, Energy and Power to practice offline. It includes additional chapter-level practice questions.

Momentum and Impulse

Subtopic

Momentum and Impulse under Space, Time and Motion for Grade 11 IB.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    A 2 kg2\ kg mass moving at 4 m s−14\ m\ s^{-1} collides with a 2 kg2\ kg mass at rest. They stick together. What is their speed after the collision?

    A.

    0 m s−10\ m\ s^{-1}

    B.

    2 m s−12\ m\ s^{-1}

    C.

    4 m s−14\ m\ s^{-1}

    D.

    8 m s−18\ m\ s^{-1}

  2. 2.

    The momentum of an object is always in the same direction as its:

    A.

    Acceleration

    B.

    Velocity

    C.

    Net force

    D.

    Displacement from origin

  3. 3.

    A 5 kg5\ kg object experiences a change in momentum of 25 kg m s−125\ kg\ m\ s^{-1}. What is its change in velocity?

    A.

    125 m s−1125\ m\ s^{-1}

    B.

    30 m s−130\ m\ s^{-1}

    C.

    5 m s−15\ m\ s^{-1}

    D.

    0.2 m s−10.2\ m\ s^{-1}

Download the worksheet for Space, Time and Motion - Momentum and Impulse to practice offline. It includes additional chapter-level practice questions.

Rigid Body Mechanics

Subtopic

Rigid Body Mechanics under Space, Time and Motion for Grade 11 IB.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    What is the angular displacement of a wheel that makes 1010 complete revolutions?

    A.

    10π rad10\pi\text{ rad}

    B.

    20π rad20\pi\text{ rad}

    C.

    5π rad5\pi\text{ rad}

    D.

    40π rad40\pi\text{ rad}

  2. 2.

    The ratio of angular displacement to the time taken is called:

    A.

    Average angular velocity

    B.

    Average angular acceleration

    C.

    Instantaneous torque

    D.

    Moment of inertia

  3. 3.

    For a fixed force, how can you maximize the torque applied to a nut?

    A.

    Use a shorter wrench

    B.

    Use a longer wrench

    C.

    Apply the force at a 0∘0^{\circ} angle

    D.

    Apply the force at the pivot

Download the worksheet for Space, Time and Motion - Rigid Body Mechanics to practice offline. It includes additional chapter-level practice questions.

Galilean and Special Relativity

Subtopic

Galilean and Special Relativity under Space, Time and Motion for Grade 11 IB.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    What happens to the relativistic effects as the velocity vv of an object becomes negligible compared to the speed of light cc?

    A.

    The effects become infinitely large

    B.

    The Lorentz factor γ\gamma approaches 1, and the equations simplify to Galilean relativity

    C.

    The speed of light effectively becomes zero

    D.

    Time dilation occurs but length contraction does not

  2. 2.

    In special relativity, which of these quantities remains invariant (the same) between two inertial frames?

    A.

    The length of an object

    B.

    The time between two events

    C.

    The speed of light in vacuum

    D.

    The kinetic energy of a particle

  3. 3.

    From the perspective of a muon traveling toward Earth at high speed, the reason it reaches the surface is that:

    A.

    The distance from the upper atmosphere to the surface is contracted

    B.

    Its own lifetime is dilated

    C.

    The Earth is moving away from it

    D.

    Gravity pulls it faster than light

Download the worksheet for Space, Time and Motion - Galilean and Special Relativity to practice offline. It includes additional chapter-level practice questions.

Space, Time and Motion - Grade 11 Physics (IB) | Krit.club