As shown below, a student places a 500-gram car at point X on a wooden racetrack in an energy transformation investigation.
What outcome is most likely if the student uses a 700-gram car instead?
(1 point)
Responses
A 700-gram car would have more kinetic energy at point X and less potential energy at the bottom of the racetrack
A 700-gram car would have more kinetic energy at point X and less potential energy at the bottom of the racetrack
A 700-gram car would have more potential energy at point X and more kinetic energy at the bottom of the racetrack
A 700-gram car would have more potential energy at point X and more kinetic energy at the bottom of the racetrack
A 700-gram car would have less kinetic energy at point X and less potential energy at the bottom of the racetrack
A 700-gram car would have less kinetic energy at point X and less potential energy at the bottom of the racetrack
A 700-gram car would have less potential energy at point X and less kinetic energy at the bottom of the racetrack
A 700-gram car would have less potential energy at point X and less kinetic energy at the bottom of the racetrack
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The correct response is: A 700-gram car would have more potential energy at point X and more kinetic energy at the bottom of the racetrack.
A 700-gram car would have more potential energy at point X and more kinetic energy at the bottom of the racetrack.
To determine the outcome if the student uses a 700-gram car instead of a 500-gram car, we need to understand the concept of energy transformation in this investigation.
In this scenario, the car is placed at point X on a wooden racetrack. From this point, the car will have the most potential energy because it is at the highest point of the track. As the car moves down the track towards the bottom, the potential energy is converted into kinetic energy, which is the energy of motion.
Based on this understanding, we can analyze the options given:
1. A 700-gram car would have more kinetic energy at point X and less potential energy at the bottom of the racetrack.
2. A 700-gram car would have more potential energy at point X and more kinetic energy at the bottom of the racetrack.
3. A 700-gram car would have less kinetic energy at point X and less potential energy at the bottom of the racetrack.
4. A 700-gram car would have less potential energy at point X and less kinetic energy at the bottom of the racetrack.
When comparing the options, we can deduce that as the mass of the car increases (from 500 grams to 700 grams), its potential energy at point X will also increase since potential energy is directly related to the mass and height. Additionally, the kinetic energy at the bottom of the racetrack will also increase since kinetic energy depends on the mass and speed of the car.
Thus, the correct response would be:
A 700-gram car would have more potential energy at point X and more kinetic energy at the bottom of the racetrack.