Kinetic energy is a form of energy that arises due to the motion of an object. To understand the dependency of kinetic energy, let's first consider the formula used to calculate it:
[tex]\[ KE = \frac{1}{2} mv^2 \][/tex]
Here:
- [tex]\( KE \)[/tex] stands for kinetic energy.
- [tex]\( m \)[/tex] represents the mass of the object.
- [tex]\( v \)[/tex] denotes the velocity of the object.
From the formula, you can see that kinetic energy is directly proportional to the mass of the object and the square of its velocity. Therefore, kinetic energy depends on the following features:
1. Mass of the object: The more massive an object, the greater its kinetic energy if its velocity remains unchanged.
2. Velocity of the object: The kinetic energy increases with the square of the velocity. This implies that an object with higher velocity will have significantly more kinetic energy.
Given these considerations, the feature of the object that affects its kinetic energy the most is its motion, which encompasses both its mass and velocity.
So, the correct answer to the question "The amount of kinetic energy an object has depends on which feature of the object?" is:
its motion
Thus, the correct option in the multiple-choice list is:
1. its motion
