Newton's First Law of Motion Quiz
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Questions and Answers

According to the text, when an object moves with a constant velocity, what can we conclude about the forces acting on it?

  • It has a very large inertia.
  • There are no forces acting on it.
  • There is no unbalanced (net) force acting on it. (correct)
  • It is moving toward its natural place.

    • What kind of motion does a constant, non-zero net force produce on an object of constant mass?

  • Constant speed
  • Constant acceleration (correct)
  • Increasing acceleration
  • It depends on the speed of the object.

    • In the given text, which law of motion states that forces always come in pairs, are equal in magnitude and opposite in direction, and act on different objects?

  • Newton's first law
  • Newton's law of universal gravitation
  • Newton's second law
  • Newton's third law (correct)

    • In the context of Newton's second law of motion, which of the following gives the correct units for force?

    <p>$kg m/ s^2$</p> Signup and view all the answers

    What is another name for Newton's first law of motion?

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

    What is the SI unit of force?

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

    According to Newton's second law of motion, an object's acceleration is directly proportional to the ____________ and inversely proportional to the mass.

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

    Near the moon’s surface, if an astronaut with a mass of 75.0 kg experiences a weight of 122 N, what is the acceleration due to gravity near the moon's surface?

    <p>$1.63 m/s^2$</p> Signup and view all the answers

    What is the scientific unit of force?

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

    What is the value of acceleration due to gravity (g) in m/s^2?

    <p>9.8</p> Signup and view all the answers

    In the context of Newton's second law of motion, which of the following correctly represents the relationship between force, mass, and acceleration?

    <p>$F = m \times a$</p> Signup and view all the answers

    If an object is experiencing a non-zero net force, what kind of motion does it produce?

    <p>Constant acceleration</p> Signup and view all the answers

    What is the value of the weight of an astronaut with a mass of 75.0 kg near the moon's surface?

    <p>122 N</p> Signup and view all the answers

    When an object moves with a constant velocity, what can we conclude about the forces acting on it?

    <p>The net force acting on it is zero</p> Signup and view all the answers

    According to Newton's first law of motion, which of the following statements about inertia is correct?

    <p>Inertia is the tendency of an object to resist any change in its motion</p> Signup and view all the answers

    What does Newton's second law of motion state about an object's acceleration?

    <p>Acceleration is directly proportional to the force and inversely proportional to the mass</p> Signup and view all the answers

    According to Newton's third law of motion, what can be said about the forces in a pair?

    <p>They are equal in magnitude and opposite in direction</p> Signup and view all the answers

    What is the scientific unit of force, as mentioned in the text?

    <p>Newton (N)</p> Signup and view all the answers

    If a force of 50 N is applied to an object with a mass of 5 kg, what will be the resulting acceleration, based on Newton's second law of motion?

    <p>$10 , m/s^2$</p> Signup and view all the answers

    What is the value of acceleration due to gravity (g) in the British system, as mentioned in the text?

    <p>$32.2 , ft/s^2$</p> Signup and view all the answers

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