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11 December, 22:32

Jack rolled a marble down a ramp and recorded the potential energy and kinetic energy of the marble at different positions on the ramp, as shown in the table. Marble experiment Height of Marble from Ground (meters) Potential Energy of Marble (Joules) Kinetic Energy of Marble (Joules) Total Energy of Marble (Joules) Trial 1 1 1 3 4 Trial 2 2 3 1 4 Which is the independent variable in this experiment? Mass of marble Kinetic energy of marble Potential energy of marble Height of marble from ground

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  1. 11 December, 22:44
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    Answer: D

    Height of marble from ground

    Explanation:

    From the formula of kinetic energy and potential energy,

    K. E = 1/2mv^2

    While

    P. E = mgh

    From all the parameters given from the question. You can see that mass is constant, acceleration due to gravity is also constant.

    Independent variable must be a value that can varies.

    Since Jack rolled a marble down a ramp and recorded the potential energy and kinetic energy of the marble at different positions on the ramp to see the effects on both energies.

    This different position must be the height which will produce an effect on the potential and kinetic energy of the marble.

    Independent variable always provides an effect for dependent variable. Which are kinetic energy and potential energy in this case.

    Height of marble from ground is the right answer.
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