Physics

8th

grade

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Laws of Motion

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10 questions

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  • 1. Multiple Choice
    30 seconds
    1 pt

    Which of the following statement is TRUE when a ball rolls on the floor then eventually stops?

    The ball stopped because its force was already used up.

    The ball stopped because a balanced force was acting on it.

    The ball stopped because an unbalanced force was acting on it.

    The force acting on the ball was continuously decreasing.

  • 2. Multiple Choice
    30 seconds
    1 pt
    Image

    A steel ball is attached to a string and swung in a circular path in a horizontal plane as illustrated in the figure on the right. At the point P indicated in the figure, the string suddenly breaks near the ball. If these events are observed from directly above as in the figure, which path would the ball most closely follow after the string breaks?

    Path A

    Path B

    Path C

    Path D

    Path E

  • 3. Multiple Choice
    30 seconds
    1 pt

    What is inertia?

    The basis for Newton’s First Law of Motion

    Defined as the tendency for an object to remain at rest or in uniform motion.

    A term meaning resistant to change and is dependent on the mass of an object

    All of the above

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