Question

1. A car at a parking lot exposed to sunlight. The windscreen of the car cracks the moment the air conditioner is turned on.
(a) explain the phenomenon
(b) suggest and explain a precautionary step that should be taken to prevent this incident ​

Answer 1

Answer:

1. As because the direct sunlight heats up both the metal and glass of a car after some time, the metal edges heat up faster. This can cause stress on the middle of the glass and lead to cracking. These cracks often show up at the edges of the windshield and spread out onto the entire glass surface .
2. To prevent this

• Park the Car in the Shade or a Garage
• Wash your card with mild water