Physics Study Quiz: Branches and Physical Quantities
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Questions and Answers

Which property of matter was identified by Galileo that makes heavier objects more difficult to move or stop?

  • Acceleration
  • Momentum
  • Inertia (correct)
  • Force
  • According to Newton, what property of matter causes a body to resist changes in its state of rest or uniform motion?

  • Force
  • Inertia (correct)
  • Momentum
  • Acceleration
  • A force can do which of the following to a body?

  • Move or stop the body
  • Change the direction of the body's motion
  • Change the shape or size of the body
  • All of the above (correct)
  • The goalkeeper in Figure 3.4 is using a force to:

    <p>Stop the ball</p> Signup and view all the answers

    Which of the following statements about momentum is correct?

    <p>Momentum is a vector quantity</p> Signup and view all the answers

    According to the law of conservation of momentum, the total momentum of a closed system:

    <p>Remains constant over time</p> Signup and view all the answers

    What are the characteristics of a physical quantity?

    <p>Numerical magnitude and unit of measurement</p> Signup and view all the answers

    Which of the following are considered base quantities?

    <p>Length, mass, time, electric current</p> Signup and view all the answers

    What is the unit for measuring mass in the International System of Units (SI)?

    <p>Kilogram</p> Signup and view all the answers

    Which law states that the total momentum of an isolated system remains constant if no external forces act on it?

    <p>Law of Conservation of Momentum</p> Signup and view all the answers

    Inertia is the resistance of an object to change its state of motion. Which of Newton's laws is directly related to this concept?

    <p>Newton's First Law</p> Signup and view all the answers

    What is the relationship between force and acceleration as described by Newton's Second Law?

    <p>$F = ma$</p> Signup and view all the answers

    According to Newton's first law of motion, what happens when no net force acts on a body?

    <p>The body will remain at rest or in uniform motion</p> Signup and view all the answers

    What is the relationship between the momentum $P$ of a body and its mass $m$ and velocity $v$?

    <p>$P = mv$</p> Signup and view all the answers

    Why does a moving object on a rough surface stop earlier than on a smooth surface?

    <p>Rough surfaces offer greater friction</p> Signup and view all the answers

    What is the SI unit of momentum?

    <p>kgm/s</p> Signup and view all the answers

    When a bus takes a sharp turn, why do passengers fall in the outward direction?

    <p>Due to the passengers' inertia</p> Signup and view all the answers

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