EDEXCEL Unit 5 Physics Discussions - IAL only

What was the answer for the mcq question asking about SHM?
I chose none of the energies.

Reply 5

What was the temperature after impact? How did you approach it?

Reply 6

Original post by Daniel Atieh

What was the answer for the mcq question asking about SHM?
I chose none of the energies.

yah i chose that too....but i think they are wrong...the total energy should be constant right?and for the first mcq what did you chose?person's position?

Reply 7

Original post by Daniel Atieh

What was the temperature after impact? How did you approach it?

p1v1/t1=p2v2/t2

Reply 8

Original post by saifulahmed

yah i chose that too....but i think they are wrong...the total energy should be constant right?and for the first mcq what did you chose?person's position?

I chose person's position. No i think it's correct, coz its not a condition for SHM.

Original post by saifulahmed

p1v1/t1=p2v2/t2

same

What did you get exactly here?

Reply 9

Original post by Daniel Atieh

I chose person's position. No i think it's correct, coz its not a condition for SHM.

same :smile:

What did you get exactly here?

26'C

Reply 10

Original post by Daniel Atieh

I chose person's position. No i think it's correct, coz its not a condition for SHM.

same :smile:

What did you get exactly here?

in that question we had to find the mass of a planet, did you need the given mass?for me the given mass got crossed out in both questions.

Reply 11

AliNSiddiqui

2

Original post by saifulahmed

26'C

Really? Did you convert the units to Pascal from kPa and to m^3 from cm^3?

Reply 12

Original post by saifulahmed

in that question we had to find the mass of a planet, did you need the given mass?for me the given mass got crossed out in both questions.

I really forgot what i did here. I think i used the equations separately, but i believe i got it correct.

Why alpha particle gained most of the energy?

Reply 13

Original post by AliNSiddiqui

Really? Did you convert the units to Pascal from kPa and to m^3 from cm^3?

we didn't need to in the first question, cause they got crossed out, but needed it in next question.

Reply 14

Original post by Daniel Atieh

I really forgot what i did here. I think i used the equations separately, but i believe i got it correct.

Why alpha particle gained most of the energy?

i wrote as the alpha particle has a small mass it was emitted with more speed than lead nucleus to conserve the momentum, so it had more energy. i don't know if the answer is correct but some of my friends wrote the same thing.

Reply 15

Original post by saifulahmed

i wrote as the alpha particle has a small mass it was emitted with more speed than lead nucleus to conserve the momentum, so it had more energy. i don't know if the answer is correct but some of my friends wrote the same thing.

Yeah i wrote something similar. And how did you find the energy in the next part for the gas laws?
i meant tell me how you did it for the first one and the following part which asked for the difference?

Reply 16