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Vectors, Scalars, and Coordinate Systems Quiz

12 questions physics Grades 9-12

The question sheet

Reveal any answer as you study

  1. A student drops a feather and wants positive velocity and positive acceleration. Where should her hand's coordinate be, and which direction positive?

    • Hand at zero, upward positive
    • Floor at zero, upward positive
    • Floor at zero, downward positive
    • Hand at zero, downward positive
    Reveal answer

    Answer: Hand at zero, downward positive

    Source evidence

    PDF page 118: a feather as she drops it to the ground. If the student is looking to achieve a positive velocity and positive acceleration, what is the most sensible way to set up her coordinate system?

    PDF page 118: b. Her hand should be a coordinate of zero and

    PDF page 118: the downward direction should be considered positive.

  2. To get a positive velocity and acceleration for a dropped feather, what coordinate value should be placed at the hand?

    • The floor value
    • Ten
    • One
    • Zero
    Reveal answer

    Answer: Zero

    Source evidence

    PDF page 118: b. Her hand should be a coordinate of zero and

    PDF page 118: the downward direction should be considered positive.

  3. In the feather-drop coordinate problem, which setup makes the acceleration positive?

    • Hand at zero, upward positive
    • Floor at zero, upward and downward equal
    • Hand at zero, downward positive
    • Floor at zero, upward positive
    Reveal answer

    Answer: Hand at zero, downward positive

    Source evidence

    PDF page 118: b. Her hand should be a coordinate of zero and

    PDF page 118: the downward direction should be considered positive.

    PDF page 118: a feather as she drops it to the ground. If the student is looking to achieve a positive velocity and positive acceleration, what is the most sensible way to set up her coordinate system?

  4. A student drops a feather to the ground and studies its motion. What is she trying to determine?

    • The feather's charge
    • The feather's temperature
    • The feather's acceleration
    • The feather's mass
    Reveal answer

    Answer: The feather's acceleration

    Source evidence

    PDF page 118: 2. A student is trying to determine the acceleration of

    PDF page 118: a feather as she drops it to the ground. If the student is looking to achieve a positive velocity and positive acceleration, what is the most sensible way to set up her coordinate system?

  5. For the feather-drop problem, if the hand is at zero, choosing which positive direction fails to give positive velocity?

    • Downward positive
    • Either direction works
    • Upward positive
    • Neither direction works
    Reveal answer

    Answer: Upward positive

    Source evidence

    PDF page 118: a. Her hand should be a coordinate of zero and

    PDF page 118: the upward direction should be considered positive.

    PDF page 118: a feather as she drops it to the ground. If the student is looking to achieve a positive velocity and positive acceleration, what is the most sensible way to set up her coordinate system?

  6. A student drops a feather and wants positive velocity and positive acceleration. What is the most sensible coordinate setup?

    • Hand at zero, upward positive
    • Hand at zero, downward positive
    • Floor at zero, upward positive
    • Floor at zero, downward positive
    Reveal answer

    Answer: Hand at zero, downward positive

    Source evidence

    PDF page 118: a feather as she drops it to the ground. If the student is looking to achieve a positive velocity and positive acceleration, what is the most sensible way to set up her coordinate system?

    PDF page 118: b. Her hand should be a coordinate of zero and

    PDF page 118: the downward direction should be considered positive.

  7. For the dropped feather, where should the student place the coordinate of zero to get positive velocity and acceleration?

    • At the floor
    • At her hand
    • At the ceiling
    • Midway to the ground
    Reveal answer

    Answer: At her hand

    Source evidence

    PDF page 118: b. Her hand should be a coordinate of zero and

    PDF page 118: the downward direction should be considered positive.

  8. In the feather-drop coordinate problem, which direction should be considered positive?

    • Rightward
    • Upward
    • Downward
    • Leftward
    Reveal answer

    Answer: Downward

    Source evidence

    PDF page 118: b. Her hand should be a coordinate of zero and

    PDF page 118: the downward direction should be considered positive.

  9. What is the student trying to determine as she drops the feather?

    • Its mass
    • Its color
    • Its temperature
    • Its acceleration
    Reveal answer

    Answer: Its acceleration

    Source evidence

    PDF page 118: 2. A student is trying to determine the acceleration of

    PDF page 118: a feather as she drops it to the ground. If the student is looking to achieve a positive velocity and positive acceleration, what is the most sensible way to set up her coordinate system?

  10. According to the problem, what object is the student dropping to study its motion?

    • A feather
    • A weight
    • A cart
    • A ball
    Reveal answer

    Answer: A feather

    Source evidence

    PDF page 118: 2. A student is trying to determine the acceleration of

    PDF page 118: a feather as she drops it to the ground. If the student is looking to achieve a positive velocity and positive acceleration, what is the most sensible way to set up her coordinate system?

  11. To achieve positive acceleration for the falling feather, the positive direction must match which way the feather moves?

    • Opposite to its fall
    • Perpendicular to its fall
    • The same direction it falls
    • Any direction chosen
    Reveal answer

    Answer: The same direction it falls

    Source evidence

    PDF page 118: a feather as she drops it to the ground. If the student is looking to achieve a positive velocity and positive acceleration, what is the most sensible way to set up her coordinate system?

    PDF page 118: b. Her hand should be a coordinate of zero and

    PDF page 118: the downward direction should be considered positive.

  12. In the described problem, where does the feather end up?

    • On the ground
    • In her hand
    • On a table
    • In the air
    Reveal answer

    Answer: On the ground

    Source evidence

    PDF page 118: 2. A student is trying to determine the acceleration of

    PDF page 118: a feather as she drops it to the ground. If the student is looking to achieve a positive velocity and positive acceleration, what is the most sensible way to set up her coordinate system?

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Source

AP College Physics

AP College Physics by OpenStax, used under CC BY 4.0. Changes made by Stratacademy.

Original textbook · CC BY 4.0

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