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ACSEE (Form 6) Mechanics (Newton's Laws of Motion) — practice questions

Explore 3 free Mechanics (Newton's Laws of Motion) questions in ACSEE (Form 6) Physics. Open each question or exercise to read its content, reference answers and available explanation.

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Mechanics (Newton's Laws of Motion) questions and exercises with answers

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Which everyday event illustrates Newton's first law of motion?Read the answer and worked solution →First law or second law?Read the answer and worked solution →Spot the intruderRead the answer and worked solution →

Worked practice questions

Which everyday event illustrates Newton's first law of motion?

  1. Passengers falling back as a car starts
  2. Kicking a stationary football forwards
  3. Pushing a heavy door until it opens
  4. Pushing a swing to start it moving
Show answer and solution

Correct answer: A. Passengers falling back as a car starts

1. The first law concerns inertia: a body keeps its state of rest or uniform motion unless a force acts. 2. When a car suddenly starts, the passengers' bodies tend to stay at rest, so they appear to fall backwards. 3. Other examples of the same law are falling forwards when a bus stops suddenly, an athlete running before a jump, mud flying off tangentially from a wheel, and a seat belt locking. 4. Kicking a ball, pushing a door and pushing a swing all apply a force that produces acceleration. 5. Those three illustrate the second law, and offering them here was the recorded error. _Source: NECTA ACSEE 2023 Physics 131/1, Question 4: Mechanics (Newton's Laws of Motion)_

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First law or second law?

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Items
  1. Group
    First law
    Item
    Bus stops, lurch
  2. Group
    First law
    Item
    Car starts, rock
  3. Group
    First law
    Item
    Mud flies off
  4. Group
    First law
    Item
    Seat belt locks
  5. Group
    Second law
    Item
    Kicking a ball
  6. Group
    Second law
    Item
    Pushing a swing
  7. Group
    Second law
    Item
    Pushing a door
Groups
  1. Item
    First law
  2. Item
    Second law
Instructions
Steer each everyday example into the law it illustrates.

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Spot the intruder

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Questions
  1. Items
    1. F = v dm/dt
    2. F = (mv - mu)/t
    3. F = d(mv)/dt
    4. F = (dm/dt)/v
    Odd item
    F = (dm/dt)/v
  2. Items
    1. Bus stops, you lurch
    2. Seat belt locks
    3. Mud flies off wheel
    4. Kicking a ball
    Odd item
    Kicking a ball
  3. Items
    1. Isobaric
    2. Isochoric
    3. Isothermal
    4. Adiabatic
    Odd item
    Adiabatic
Instructions
Three belong together. Tap the one that does not.

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