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# GCSE Physics watch

1. AQA on Tuesday

Can anyone explain if (and why) waves travel faster in deep or shallow water?

C4
2. i'd guess shallow because it is less dense.
3. i think they travel slower because they reach a different medium ect. They also refract. I think.
4. YA they refract and also the distance between the waves decreases
5. So they go faster in shallow water?

...and when they are in shallow water the wavelength decreases?

C4
6. (Original post by C4>O7)
So they go faster in shallow water?

C4
Water waves are slowed down as they pass over an area of shallow water. So they are being refracted; but they will only change direction if the waves hit the shallow water at an angle.

When the waves leave the shallow water they speed up again.
7. 66% for an A right?
8. (Original post by illmathematical)
Water waves are slowed down as they pass over an area of shallow water. So they are being refracted; but they will only change direction if the waves hit the shallow water at an angle.

When the waves leave the shallow water they speed up again.
Thanks

C4
9. (Original post by koldtoast)
66% for an A right?
50% B - 62% A - 73% A* -- last year's boundaries that is.
10. (Original post by illmathematical)
50% B - 62% A - 73% A* -- last year's boundaries that is.
is that an average between the three papers?
11. (Original post by Me2)
is that an average between the three papers?
Yep
12. which board r them grade boudaries 4?
13. Anyone know OCR science grade boundaries? Just so I can beat myself up a bit more
14. (Original post by starcrossed)
which board r them grade boudaries 4?
AQA Double Award (Higher)
15. Hi
Does anyone no the grade boundary overall for edexcel science?
thanx
xxx
Hi
Does anyone no the grade boundary overall for edexcel science?
thanx
xxx
You will find them on Edexcel's Site.

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