Circle the correct word...
1. A touch screen on a phone is an example of a device that uses a... capacitor/CCD
2. When you bring your finger close to the screen your finger acts as one of the... plates/terminals
3. A sensing circuit works out the... position/temperature... of your finger. The camera on a phone is an example of a device that uses a... capacitor / CCD.
4. Light hits a grid of devices that produce... charge/current.
5. Each of the squares is a... capacitor/pixel.