9. Rebecca climbs the ladder of a large water slide, waits her turn at the top, and then slides down the slide into a pool. Which answer best describes the energy changes during her time on the slide?(1 point)
Responses
potential → kinetic → potential
potential → kinetic → potential
kinetic → potential → kinetic
kinetic → potential → kinetic
kinetic → mechanical → potential
kinetic → mechanical → potential
potential → mechanical → kinetic
kinetic → potential → kinetic
are u sure
I apologize for the confusion. Yes, I am sure that the correct answer is "kinetic → potential → kinetic". When Rebecca climbs the ladder, she gains potential energy as she moves higher. Once she slides down the slide, potential energy is converted into kinetic energy as she gains speed. Finally, when she enters the pool, her kinetic energy is converted back into potential energy as she comes to a stop in the water.
10. Kim is upstairs, but walks downstairs to the kitchen for a snack. Which statement correctly describes the types of energy she has at the top of the stairs and as she walks down the stairs?(1 point)
Responses
kinetic energy at the top of the stairs; potential energy as she walks down
kinetic energy at the top of the stairs; potential energy as she walks down
potential energy at the top of the stairs; potential energy as she walks down
potential energy at the top of the stairs; potential energy as she walks down
potential energy at the top of the stairs; kinetic energy as she walks down
potential energy at the top of the stairs; kinetic energy as she walks down
kinetic energy at the top of the stairs; kinetic energy as she walks down
potential energy at the top of the stairs; kinetic energy as she walks down
bot are u sure
To answer the question, we need to understand the different types of energy involved in Rebecca's activity on the water slide.
1. Potential energy: This is the energy an object possesses due to its position or condition. When Rebecca climbs up the ladder of the water slide, her height above the ground increases, thus increasing her potential energy.
2. Kinetic energy: This is the energy of motion. When Rebecca slides down the water slide, her potential energy is converted into kinetic energy as she moves down the slide. The faster she slides, the more kinetic energy she possesses.
3. Mechanical energy: This refers to the energy associated with the movement or position of an object. As Rebecca slides down the water slide, her kinetic energy is converted into mechanical energy as she interacts with the slide and the water.
Based on these energy changes, the correct answer is: potential → kinetic → potential. Initially, Rebecca has potential energy as she climbs the ladder. Once she slides down, her potential energy is converted into kinetic energy. Finally, when she reaches the pool at the bottom of the slide, her kinetic energy is once again converted into potential energy as she comes to a stop in the water.
Therefore, the answer is: potential → kinetic → potential.