Question

(c) which of the following best describes the energy during step 1 after the spring was released?
some of the gravitational potential energy stored in the spring was transferred to the marble, giving the marble elastic potential energy.
some of the gravitational potential energy stored in the spring was transferred to the marble, giving the marble kinetic energy.
some of the kinetic energy stored in the spring was transferred to the marble, giving the marble gravitational potential energy.
some of the elastic potential energy stored in the spring was transferred to the marble, giving the marble kinetic energy.
(d) when the student first tested the machine, it did not turn on the light bulb. the marble was pushed off the table by the spring but went too far and missed the ramp, as show

Explanation:

When a spring is released, it has elastic potential energy. As it pushes the marble, this elastic potential energy is transferred. Kinetic energy is the energy of motion. The marble starts moving (has motion), so the elastic potential energy of the spring is converted to the marble's kinetic energy.

• Option A: Spring has elastic potential energy (not gravitational potential energy), and marble gets kinetic energy (not elastic potential energy).
• Option B: Spring has elastic potential energy (not gravitational potential energy).
• Option C: Spring has elastic potential energy (not kinetic energy), and marble gets kinetic energy (not gravitational potential energy).
• Option D: Correct as elastic potential energy of spring is transferred to marble's kinetic energy.

Answer:

D. Some of the elastic potential energy stored in the spring was transferred to the marble, giving the marble kinetic energy.