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標題: [PastPaper]2004GCSE進階物理(高卷) [打印本頁]

作者: dolphin_ice 時間: 24/2/2005 02:10 AM
標題: [PastPaper]2004GCSE進階物理(高卷)
2004 GCSE 進階物理 (高卷) / 2004 GCSE Seperate PHYSICS Higher Tier
[超簡化篇] Cut去所有graph, 圖題目。
原版程度: 英國中5(精英組)/ 香港中5~7(估計) <--不過呢份野事實係比我簡化左好多! XDD
form1仔絕對0岩玩XD
[改編]
時間: 2 hours(?)
備註: equation=formula.
請自己做完之後﹐自己去"Answers"度自己改卷XDD

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The follwing represents the electromagnetic spectrum.
|Gamma Rays| X-rays | Ultraviolet| Visible light| Infra red| Microwaves| Radio waves|

Name the type of electromagnetic radiation that is used to:
1) sterilise surgical instruments. [1mark]

2) to send a signal to a TV from remote control.[1mark]

3) Valuable items can be security marked using special ink. The ink can only be seen in ultraviolet radiation.
Explain what happens to make the ink visible. [2]

4. Explain why skin cells need to be pretected from Ultraviolet radiation.[2]

The following information is from an oven that combines a microwave and a grill.
Voltage-230V
Microwave power-0.65kW
Grill power--1.15kW

5. Name 2 types of electromagnetic radiation that the oven can use to cook.[1]

6. Both are switched on at full power for half an hour. Calculate energy transfered, in kWh, by the oven. [2]

7. Which 2 are the same element? [1]
a) 7proton 7neutron 7 electron
b) 6 6 6
c) 6 8 6

8. Give your reasons to your answer[1]

9. A Space shuttle takes 9 mins to reach its orbital velocity of 8100m/s
Write down the equation that links acceleration, change in velocity and time taken. [1]

10. Calculate in m/s, the average acceleration, of the space shuttle during the first 9 minutes of its flight. Show clearly how you work out your answer.
[2]

11. How is the velocity of an object diffrerent from the speed of an object? [1]

12. The space shuttle can stay in orbit around the earth for several weeks. Esplain why it stays in orbit and does not fall. [2]

13. As the shuttle returns to earth, friction causes its outside temperature to go as high as 1200C. Why is the underneath of the shuttle covered with black tiles?[1]

14. Jill weighs 700N and Greg weighs 500N. They are carried by a charlift to 200m high. Write down the equation that links distance moved, force applied and work done. [1]

15. Calculate work done to lift Greg and Jill. [3]

16. The chair takes 5mins to move from the bottom to the top of the ski slope. Use the following equation to calculate the power required to lift Greg and Jill to the top of the ski slope. [2]
power=work done/ time taken
[

17. What word can be used for "the flow of electrons"? [1]

18. How is a thermistor affected by an increase in temperature? [2]

19. Write down the equation that links acceleration, force and mass. [1]

20. Write down the equation that links current, potential difference and power. [1]

21. Use the theory of plate techtonics to explain sea floor spreading. [2]

22. What evidence is there to support the idea of sea-floor spreading?[1]

23. Write down the equation that links frequency, wavelength and wave speed. [1]

24. A lens is used as a magnifying glass. What type of lens is it? [1]

25. Two points are marked as F. In ray diagrams. What are these points? [1]

26. What is the name of the straight line which goes through F, through the centre of the lens, and through F on the other side? [1]

27. Write down the equation, in words, which you need to use to calculate momentum. [1]

28. Write down the equation which connects change in momentum, force and time. [1]

29. Which part of an atom emits a beta particle? [1]

30. How does the composition of an atom change when it emits a beta particle? [1]

------------------------------全卷完--------------------------------

作者: 細薯 時間: 24/2/2005 07:53 AM
連chem ge 問題都有ge~~XD
90~95% ng識做XDDDDD

作者: dolphin_ice 時間: 24/2/2005 04:18 PM
咁你就大件事la!

因為香港同英國會考ge Syllabus 係一樣ge! (除左進階物理會有D 香港A-level野之外)

作者: SusanCrystal 時間: 24/2/2005 05:55 PM
7. Which 2 are the same element? [1]
a) 7proton 7neutron 7 electron
b) 6 6 6
c) 6 8 6

b同c囉...
查實呢題都係physics?

作者: dolphin_ice 時間: 24/2/2005 08:35 PM
Chem同Phy 都會考XD

作者: 細薯 時間: 25/2/2005 12:34 PM

Originally posted by 紅唇娃 at 2005-2-24 04:18 PM:
咁你就大件事la!

因為香港同英國會考ge Syllabus 係一樣ge! (除左進階物理會有D 香港A-level野之外)

我phy淨係教左:

Mechanics X 80%
Heat X 100%

作者: dolphin_ice 時間: 26/2/2005 05:56 PM
咁少?

作者: 細薯 時間: 28/2/2005 12:06 PM

Originally posted by 紅唇娃 at 2005-2-26 05:56 PM:
咁少?

CE 仲有幾多我school未教??

作者: JOHNLAM17 時間: 2/3/2005 10:47 PM
等我讀埋form 3 先la....

作者: dolphin_ice 時間: 2/3/2005 11:19 PM
試下啦

作者: JOHNLAM17 時間: 3/3/2005 10:42 PM

Originally posted by 紅唇娃 at 2005-3-2 11:19 PM:
試下啦

I am in form 3 now...
none of the questions above I can do!!!!!

作者: dolphin_ice 時間: 4/3/2005 01:50 AM
撞下呀ma...

作者: 鬼鬼 時間: 21/4/2005 10:29 PM
The follwing represents the electromagnetic spectrum.
|Gamma Rays| X-rays | Ultraviolet| Visible light| Infra red| Microwaves| Radio waves|

Name the type of electromagnetic radiation that is used to:
1) sterilise surgical instruments. [1mark]
<<<
Gamma Ray.

2) to send a signal to a TV from remote control.[1mark]
<<<
IR

3) Valuable items can be security marked using special ink. The ink can only be seen in ultraviolet radiation.
Explain what happens to make the ink visible. [2]
<<<
當D墨汁被響UV照射時，墨汁分子中的電子會被excited，
當這些電子由興奮狀態跌回ground states時，會release a photon.
As energy levels in the electron shells are quantized,
the wavelength of the photon emitted are also quantized.
E=hf = hc/λ
If the wavelength of the photon falls onto the visible light region,
the ink can be observed by eyes.

4. Explain why skin cells need to be pretected from Ultraviolet radiation.[2]
<<<
Genetic mutation of the skin cells may occur due to exposion under large amount of UV light. Which leads to Skin cancer.

The following information is from an oven that combines a microwave and a grill.
Voltage-230V
Microwave power-0.65kW
Grill power--1.15kW
5. Name 2 types of electromagnetic radiation that the oven can use to cook.[1]
<<<
Microwave,
Infra red.

6. Both are switched on at full power for half an hour. Calculate energy transfered, in kWh, by the oven. [2]
<<<
P=E/t
E=Pt= (0.65+1.15) * 60*60
= 6480kJ

7. Which 2 are the same element? [1]
a) 7proton 7neutron 7 electron
b) 6 6 6
c) 6 8 6
<<<
BC

8. Give your reasons to your answer[1]
<<<
Both contain 6 protons.

9. A Space shuttle takes 9 mins to reach its orbital velocity of 8100m/s
Write down the equation that links acceleration, change in velocity and time taken. [1]
<<<
a=(v-u)t

10. Calculate in m/s, the average acceleration, of the space shuttle during the first 9 minutes of its flight. Show clearly how you work out your answer.
[2]
<<<
a=(v-u)/t
= 8100/(9*60)
=15ms-2

11. How is the velocity of an object diffrerent from the speed of an object? [1]
<<<
speed = distance travelled / time
velocity = displacement / time

12. The space shuttle can stay in orbit around the earth for several weeks. Esplain why it stays in orbit and does not fall. [2]
<<<
The gravitational force provided centripetal force to the space shuttle.

13. As the shuttle returns to earth, friction causes its outside temperature to go as high as 1200C. Why is the underneath of the shuttle covered with black tiles?[1]
<<<
To protect the metal components of the space shuttle from melting.

14. Jill weighs 700N and Greg weighs 500N. They are carried by a charlift to 200m high. Write down the equation that links distance moved, force applied and work done. [1]
<<<
W=Fs

15. Calculate work done to lift Greg and Jill. [3]
<<<
Jill:
W=700 x 200 = 140kJ
Greg:
W=500 x 200 = 100kJ

16. The chair takes 5mins to move from the bottom to the top of the ski slope. Use the following equation to calculate the power required to lift Greg and Jill to the top of the ski slope. [2]
power=work done/ time taken
Power=(140000+100000)/(5 x 60)
=800Watt

17. What word can be used for "the flow of electrons"? [1]
<<<
electricity.

18. How is a thermistor affected by an increase in temperature? [2]
<<<
When the temperature increase, the resistance of the thermistor decrease.

19. Write down the equation that links acceleration, force and mass. [1]
<<<
F=ma

20. Write down the equation that links current, potential difference and power. [1]
<<<
P=IV

21. Use the theory of plate techtonics to explain sea floor spreading. [2]
<<<
I dunno what the hell is it lol

22. What evidence is there to support the idea of sea-floor spreading?[1]
<<<
唔知係乜 XD

23. Write down the equation that links frequency, wavelength and wave speed. [1]
<<<
c=fλ

24. A lens is used as a magnifying glass. What type of lens is it? [1]
<<<
Convex lens.

25. Two points are marked as F. In ray diagrams. What are these points? [1]
<<<
Focus

26. What is the name of the straight line which goes through F, through the centre of the lens, and through F on the other side? [1]
<<<
Principal axis.

27. Write down the equation, in words, which you need to use to calculate momentum. [1]
<<<
p=mv

28. Write down the equation which connects change in momentum, force and time. [1]
<<<
F=p/t

29. Which part of an atom emits a beta particle? [1]
<<<
A neutron in the nucleus.

30. How does the composition of an atom change when it emits a beta particle? [1]
<<<
No of proton +1
No of neutron -1

------------------------------全卷完--------------------------------
[E-TeH][E-TeH][E-TeH][E-TeH][E-TeH][E-TeH][E-TeH][E-TeH]

作者: dolphin_ice 時間: 23/4/2005 11:18 PM
o下o下o下?
唔係有個post有answers ga咩? o_O|||

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