Sources of energy printables and worksheets for first grade and ... - Free Printable

Problem Description:

The task is to match the images with the correct type of energy they use to work. The options for energy types are:
- Electrical Energy
- Mechanical Energy
- Petroleum Energy

The images provided are:
1. A bicycle
2. A car
3. A water bottle (likely representing a human carrying it)
4. A boat
5. A light bulb
6. A truck

Solution and Explanation:

#### 1. Bicycle
- Energy Type: Mechanical Energy
- Explanation: A bicycle operates using mechanical energy, which is generated by the rider's physical effort as they pedal. The movement of the pedals directly translates into the motion of the wheels.

#### 2. Car
- Energy Type: Petroleum Energy
- Explanation: Cars typically run on gasoline or diesel, which are forms of petroleum. The internal combustion engine in a car converts the chemical energy stored in petroleum-based fuels into mechanical energy to move the vehicle.

#### 3. Water Bottle (Human Carrying)
- Energy Type: Mechanical Energy
- Explanation: When a person carries a water bottle, the energy used comes from their muscles, which is a form of mechanical energy. This energy is derived from the chemical energy stored in the food the person consumes.

#### 4. Boat
- Energy Type: Mechanical Energy (or Petroleum Energy, depending on the context)
- Explanation: If the boat is manually powered (e.g., rowing), it uses mechanical energy from the rower's physical effort. However, if the boat has an engine (e.g., a motorboat), it would use petroleum energy. Since the image does not specify, we'll assume it is manually powered, so the answer is Mechanical Energy.

#### 5. Light Bulb
- Energy Type: Electrical Energy
- Explanation: A light bulb works by converting electrical energy into light and heat. It requires an electric current to function.

#### 6. Truck
- Energy Type: Petroleum Energy
- Explanation: Trucks are typically powered by engines that use petroleum-based fuels like diesel or gasoline. The chemical energy in these fuels is converted into mechanical energy to move the truck.

Final Answer:

1. Bicycle → Mechanical Energy
2. Car → Petroleum Energy
3. Water Bottle → Mechanical Energy
4. Boat → Mechanical Energy
5. Light Bulb → Electrical Energy
6. Truck → Petroleum Energy

Boxed Answer:
\[
\boxed{
\begin{array}{ll}
\text{Bicycle} & \text{Mechanical Energy} \\
\text{Car} & \text{Petroleum Energy} \\
\text{Water Bottle} & \text{Mechanical Energy} \\
\text{Boat} & \text{Mechanical Energy} \\
\text{Light Bulb} & \text{Electrical Energy} \\
\text{Truck} & \text{Petroleum Energy} \\
\end{array}
}
\]