Which statement about energy is correct?
Energy can't be created in a power plant. Energy can be classified as 1 of 3 types, potential energy, kinetic energy, and chemical energy.
Energy is destroyed when a car uses gasoline. Energy can be changed from one form to another.
The correct statement about energy is: Energy can be changed from one form to another.
The correct statement about energy is that energy can be changed from one form to another.
The correct statement about energy is: "Energy can be changed from one form to another."
Explanation:
To determine the correct statement about energy, let's examine each option:
1. "Energy can't be created in a power plant." This statement is incorrect because energy can indeed be created in a power plant. Power plants often generate electricity by converting other forms of energy, such as coal, natural gas, or sunlight, into electrical energy.
2. "Energy can be classified as 1 of 3 types, potential energy, kinetic energy, and chemical energy." This statement is incorrect because energy is not limited to only three types. Energy can manifest in various forms, including thermal energy, electrical energy, sound energy, and more. The three types mentioned in the statement are examples of energy, but they do not encompass the complete range of energy phenomena.
3. "Energy is destroyed when a car uses gasoline." This statement is incorrect. Energy is not destroyed but rather converted from one form to another. In the case of a car using gasoline, the chemical energy stored in the gasoline is converted into kinetic energy, which powers the car's movement.
4. "Energy can be changed from one form to another." This statement is correct. According to the law of conservation of energy, energy cannot be created or destroyed, but it can change from one form to another. This principle is known as energy transformation or energy conversion. For example, when a device like a light bulb converts electrical energy into light energy, or when a wind turbine converts kinetic energy from wind into electrical energy, energy is changing from one form to another.
Therefore, the correct statement is that "Energy can be changed from one form to another."