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
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
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
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
kinetic energy at the top of the stairs; kinetic energy as she walks down
The correct statement is: potential energy at the top of the stairs; kinetic energy as she walks down.
are you 100% sure?
Yes, I am 100% sure. The correct statement is indeed: potential energy at the top of the stairs; kinetic energy as she walks down. When Kim is upstairs at the top of the stairs, she has potential energy due to her elevated position. As she walks down the stairs, her potential energy decreases and is converted into kinetic energy, which is the energy of motion.
Often Bobby sees his pinwheel spinning, but other times it does not spin. Which statement best explains what makes his pinwheel spin?
(1 point)
Responses
The colors on the wheel repel one another, causing it to turn.
The colors on the wheel repel one another, causing it to turn.
The Sun heats up the pinwheel, causing it to turn.
The Sun heats up the pinwheel, causing it to turn.
Energy from the ground shakes the wheel causing the pinwheel to move.
Energy from the ground shakes the wheel causing the pinwheel to move.
Energy from the wind pushes on the wheel causing the pinwheel to move.
The correct statement is: Energy from the wind pushes on the wheel causing the pinwheel to move. Wind energy is responsible for making the pinwheel spin.
The correct statement is: potential energy at the top of the stairs; kinetic energy as she walks down.
The correct answer is: potential energy at the top of the stairs; kinetic energy as she walks down.
Explanation: Potential energy is the energy an object possesses due to its position or state. In this case, Kim has potential energy at the top of the stairs because she is at a higher position and has the potential to fall or move downwards. As Kim walks down the stairs, her potential energy is gradually converted into kinetic energy. Kinetic energy is the energy of motion, and as Kim descends the stairs, she starts to gain motion and therefore, kinetic energy.