Which of the following is an example of kinetic energy transfer? (1 point)
•A large snowball sitting 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
Xavier pushing Brad down the snowy hill on a sled
The example of kinetic energy transfer among the given options is Xavier pushing Brad down the snowy hill on a sled.
To determine which of the given options is an example of kinetic energy transfer, we need to understand what kinetic energy is.
Kinetic energy is the energy possessed by an object due to its motion. It depends on both the mass and the speed of the object. When an object is in motion, and its speed increases, its kinetic energy increases as well.
Now, let's analyze each option:
1. A large snowball sitting at the top of a hill: This is an example of potential energy rather than kinetic energy. The snowball possesses potential energy because it is at an elevated position and has the potential to roll down the hill.
2. Xavier pushing Brad down the snowy hill on a sled: This scenario involves the transfer of kinetic energy. As Xavier pushes Brad, the sled starts moving downhill, gaining speed. The kinetic energy is transferred from Xavier's push to the sled and Brad.
3. A car driving up a steep hill: In this case, the car is gaining potential energy as it moves uphill against gravity. The engine of the car converts chemical energy into mechanical energy, which allows it to overcome gravity and climb the hill. Therefore, it is not an example of kinetic energy transfer.
4. Jules sitting in a chair: This scenario does not involve any transfer of kinetic energy. Jules sitting in a chair is a static situation where no motion or change in speed occurs. Hence, it is not an example of kinetic energy transfer.
Based on the analysis, option 2, Xavier pushing Brad down the snowy hill on a sled, is the example of kinetic energy transfer.