Blank worksheet for students to fill in the energy inputs and outputs for various devices.

To solve the problem, we need to identify the energy transformations that occur in each device. Let's analyze each row step by step:

1. Battery-Powered Torch

- Energy In: Chemical Potential (The battery stores chemical energy.)
- Device: Battery-Powered Torch
- Energy Out: Light (The torch converts chemical energy into light energy.)

2. Kettle

- Energy In: Electrical (The kettle is plugged into an electrical outlet.)
- Device: Kettle
- Energy Out: Thermal (The kettle converts electrical energy into thermal energy to heat water.)

3. Microphone

- Energy In: Sound (Sound waves from a person's voice or other sound source.)
- Device: Microphone
- Energy Out: Electrical (The microphone converts sound energy into electrical energy.)

4. Pendulum

- Energy In: Gravitational Potential (When the pendulum is lifted, it gains gravitational potential energy.)
- Device: Pendulum
- Energy Out: Kinetic (As the pendulum swings, gravitational potential energy is converted into kinetic energy.)

Final Answer:

\[
\begin{array}{ccc}
\text{Energy In} & \text{Device} & \text{Energy Out} \\
\hline
\text{Chemical Potential} & \text{Battery-Powered Torch} & \text{Light} \\
\text{Electrical} & \text{Kettle} & \text{Thermal} \\
\text{Sound} & \text{Microphone} & \text{Electrical} \\
\text{Gravitational Potential} & \text{Pendulum} & \text{Kinetic} \\
\end{array}
\]

\boxed{
\begin{array}{ccc}
\text{Chemical Potential} & \text{Battery-Powered Torch} & \text{Light} \\
\text{Electrical} & \text{Kettle} & \text{Thermal} \\
\text{Sound} & \text{Microphone} & \text{Electrical} \\
\text{Gravitational Potential} & \text{Pendulum} & \text{Kinetic} \\
\end{array}
}