N5 Physics

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So unprepared for this :redface:

Got to go over all three units today. Haven't even done the basics yet, never mind all the stuff above which I seriously hope is not in the exam (no mention of ''half-cycles'' etc in any books I have :frown:

). Also, our physics teacher never taught us about capacitors, thermistors, LDR's, diodes or solar cells and they're definitely in the course. Just got to do a lot of work I guess, strictly no procrastination :colone:

We never got taught on some of the circuit symbols and AC either, but I can't believe you haven't been taught thermistors and LDRs - they're pretty important! Especially in voltage divider circuits coupled with transistors - I think a question like that could come up.

Reply 21

chopinfan

Good luck for tomorrow guys :smile:

Reply 22

Dralcon

That went pretty well I thought, although it was harder than the Hodder Gibson model papers. Does anybody have answers?

Reply 23

Ecasx

Multiple Choice Paper + Answers

1. D
2. D
3. B
4. C
5. B
6. A
7. A
8. C
9. B
10. B
11. E
12. A
13. E
14. A
15. E
16. D
17. D
18. E
19. C
20. D

http://i.imgur.com/twEpL9o.jpg
http://i.imgur.com/4iKW1Bh.jpg
http://i.imgur.com/eAPkm8n.jpg
http://imgur.com/xarSOB6.jpg
http://i.imgur.com/rgwVjT0.jpg
http://i.imgur.com/VOEOY9Q.jpg
http://i.imgur.com/nrtcEHw.jpg
http://i.imgur.com/rc51Dxc.jpg
http://i.imgur.com/kxG5aLp.jpg
http://i.imgur.com/F7hPEKR.jpg

Reply 24

chopinfan

That was quite fun lol :biggrin:

Didn't have time to check over answers but should hopefully be mainly accurate. I thought the open-ended questions were really good but the last question annoyed me because there was no mass for the fins and it didn't explicitly state that the mass of the water rocket included the mass of the fins :/ Oh and my answer to the apparatus question was a bit clumsy but cba with those sort of questions anyway haha :tongue:

Reply 25

chopinfan

Original post by Ecasx

Multiple Choice Paper + Answers

1. D
2. D
3. B
4. C
5. B
6. A
7. A
8. C
9. B
10. B
11. E
12. A
13. E
14. A
15. E
16. D
17. D
18. E
19. C
20. D

http://i.imgur.com/twEpL9o.jpg
http://i.imgur.com/4iKW1Bh.jpg
http://i.imgur.com/eAPkm8n.jpg
http://imgur.com/xarSOB6.jpg
http://i.imgur.com/rgwVjT0.jpg
http://i.imgur.com/VOEOY9Q.jpg
http://i.imgur.com/nrtcEHw.jpg
http://i.imgur.com/rc51Dxc.jpg
http://i.imgur.com/kxG5aLp.jpg
http://i.imgur.com/F7hPEKR.jpg
Oops did question 5 wrong :redface:

19/20, quite annoying for MC as it's pretty easy to get 20

Reply 26

brookm

Can someone please explain the answer for Q4 on the multiple choice?

(edited 9 years ago)

Reply 27

chopinfan

Original post by brookm

Can someone please explain the answer for Q4 on the multiple choice?

Calculate Ep at 1m
Calculate Ep at 0.25m
Subtract second answer from first to get the joules of energy which must have been converted into kinetic energy. Also, use second answer for potential energy at 0.25m :smile:

Reply 28

Ecasx

Original post by brookm

Can someone please explain the answer for Q4 on the multiple choice?

As the ball falls, its gravitational potential energy is converted to kinetic energy. Calculate the gravitational potential energy at 0.25m and the kinetic energy is the difference between this and the gravitational potential energy at the start of the fall, height = 1m.

Edit: see above.

Reply 29

brookm

Original post by chopinfan

Ah! I get it now, I was really confused in the exam because I wasn't exactly sure what the question was asking, I understand better now! Thanks

Reply 30

chopinfan

Original post by brookm

Ah! I get it now, I was really confused in the exam because I wasn't exactly sure what the question was asking, I understand better now! Thanks

No problem! How did you find the exam overall?

Reply 31

tomctutor

Original post by Ecasx

Multiple Choice Paper + Answers

1. D
2. D
3. B
4. C
5. B
6. A
7. A
8. C
9. B
10. B
11. E
12. A
13. E
14. A
15. E
16. D
17. D
18. E
19. C
20. D

I concur these answers- spot on - well done. :yy:

(edited 9 years ago)

Reply 32

Ecasx

Original post by tomctutor

I concur these answers- spot on - well done. :yy:

Thank you. If anyone uploads section 2 I can create a marking scheme for it.

Original post by chopinfan

No problem! How did you find the exam overall?

My prediction last night was correct. :P

Reply 33

chopinfan

Original post by Ecasx

Thank you. If anyone uploads section 2 I can create a marking scheme for it.

My prediction last night was correct. :P

Yup

Luckily I'd revised transistors and voltage dividers last night then :wink:

Quite liked that question actually. Any questions you found particularly hard or weren't too sure about?

Reply 34

Ecasx

Original post by chopinfan

Yup

Luckily I'd revised transistors and voltage dividers last night then :wink:

Quite liked that question actually. Any questions you found particularly hard or weren't too sure about?

I went over Section 2 with a teacher to confirm my answers. I might have got full marks. There is one mark that I'm not certain I've got, about Newton's 3rd Law and how it applies to the water rocket. I stated the Law and explained that the bottle exerts a force on the air once the pressure reaches a certain point, pushing it down and out of the bottle, and the air exerts and equal and opposite force on the bottle, upwards. This is only partially correct because I didn't mention the water, which is also pushed out of the bottle. Hopefully this will be forgiven considering the depth of the explanation that I wrote in the paper.

Reply 35

WithoutMuchHope

Ugh only 18/20 on multiple choice I found that paper a little harder than the model papers, but still consistent with N5 I think. Section 2 I thought was easier, hoping for only 1-2 marks off. Does anyone have section 2? I can go into school tomorrow and ask for section 2 from my physics teacher and we could create a mark-scheme? *community*Why isn't paragraphing working in this post?

(edited 9 years ago)

Reply 36

chopinfan

Original post by Ecasx

Nice! Meh I didn't think that question was complicated at all and wrote something really simple which will be wrong :frown:

Can't really think of what mark I've got because I'm not sure about how they're going to mark the open-ended questions.

Reply 37

tomctutor

Original post by _Miriam_

Ugh only 18/20 on multiple choice I found that paper a little harder than the model papers, but still consistent with N5 I think. Section 2 I thought was easier, hoping for only 1-2 marks off.

Does anyone have section 2? I can go into school tomorrow and ask for section 2 from my physics teacher and we could create a mark-scheme?

*community*Why isn't paragraphing working in this post?

seems to be working?

Reply 38

WithoutMuchHope

Original post by tomctutor

seems to be working?

WOW it does not look like that for me. Congratulations Ecasx, but you'll probably get 99%- the SQA usually find a way to deduct a mark somewhere (which is b*llocks in my opinion).

(edited 9 years ago)

Reply 39

Ecasx

Original post by _Miriam_

Well done. Please do get the paper if you can :redface:

Original post by chopinfan

Nice! Meh I didn't think that question was complicated at all and wrote something really simple which will be wrong :frown:

Can't really think of what mark I've got because I'm not sure about how they're going to mark the open-ended questions.

Don't worry, the open-ended questions are marked with much more leniency than you'd think!

Original post by _Miriam_

WOW it does not look like that for me. Congratulations Ecasx, but you'll probably get 99%- the SQA usually find a way to deduct a mark somewhere (which is b*llocks in my opinion).