Which of the following is an example of kinetic energy transfer?
A large, snowball hitting at the top of a hill
Xavier, pushing Brad down the snowy hill on a sled
A car driving up a steep hill
Jules sitting in a chair
What is the correct answer?
The correct answer is: Xavier, pushing Brad down the snowy hill on a sled.
The correct answer is "Xavier, pushing Brad down the snowy hill on a sled."
The correct answer is "Xavier, pushing Brad down the snowy hill on a sled." Let me explain how to arrive at this answer.
Kinetic energy is the energy an object possesses due to its motion. In this question, we are looking for an example of kinetic energy transfer, which means the energy is being transferred from one object to another.
Let's analyze the given options:
1. A large snowball hitting at the top of a hill: This scenario involves potential energy (due to its position at the top of the hill) being converted into kinetic energy as the snowball rolls down the hill. It does not involve energy transfer from one object to another.
2. Xavier pushing Brad down the snowy hill on a sled: In this case, Xavier imparts kinetic energy to the sled and Brad by physically pushing them down the hill. Xavier's energy transfers to the sled and Brad, causing them to move and possess kinetic energy. Therefore, this option represents kinetic energy transfer.
3. A car driving up a steep hill: When a car drives up a steep hill, it uses energy from its engine to overcome gravity and increase its potential energy. This scenario involves energy conversion but not kinetic energy transfer between objects.
4. Jules sitting in a chair: This option does not involve any motion, so there is no kinetic energy present, let alone energy transfer.
Therefore, the correct answer is "Xavier, pushing Brad down the snowy hill on a sled" since it involves the transfer of kinetic energy between Xavier, the sled, and Brad.