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To investigate the factors affecting the sizes of impact craters

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Introduction

Mandip Kaur Thind Physics coursework Aim: To investigate the factors affecting the sizes of impact craters An impact may also be surrounded by an ejector blanket. This is a layer of material thrown out the formation of a crater. For example, the Ries crater in southern Germany is surrounded by a blanket of material up to 100 meters thick. Simple crater formation tends to be bowl shaped, like the Barringer Meteor crater and Wolf Creek. The ratio of width to dept is usually in the area of 5:1. These uplifts are believed to be formed by a rebound in the Earth's crust after extremely compression by impact forces. As the crust rebounds back it find itself under significantly less pressure because the impact has removed millions of tonnes of material from the surface. ...read more.

Middle

The other two craters lie very close to the main depression. All the smaller craters lie to the south and west of the main crater. Two large complex crater formations can be found in Canada. They are clear water lakes. Lake Manicouagen is a donut shaped bodies of water, approximately 70 kilometres a cross, with a broad central uplift. It is thought to be 200 million years old. The clear water lakes, north of Quebec, lie next to each other and are about 20-30 kilometres across. The most infamous cosmic impact is thought to have been responsible for the extrication of the Dinosaurs 65 million years old. In 1991 evidence of an impact was found in Argentina. ...read more.

Conclusion

In order to make it a fair test. Apparatus +why Callipers - because to measure the diameter of the crater Meter rule - to drop the ball from different height Clamp - to make sure that the ruler is kept inline with sand. Sand - to make a crater from the lead ball dropped Prediction I predict that, in this experiment the lead ball drops in the sand, and the size of crater would increase. The scientific knowledge which supports this that the compression by impacts forces. As the crust rebounds back it find itself under significantly less pressure, because the impact has removed millions of tonnes of material from the surfaces. Diagram Method 1. 2. Set up the apparatus, showed in the diagram. 1. Set 2. 3. kwqe 1. ...read more.

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