Edexcel A2 Physics - Specific heat capacity Watch

Saman_B9
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Why is the answer to this question B and not D?
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CameronWS
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I'm assuming that the question is using both circumstances as 100% efficient systems. I take A1 Physics but that seems like the only logical answer to why it's B and not D. It doesn't say anything about the surroundings of the block. Hence could be in a 100% efficient state for heat transfer.
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Joinedup
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(Original post by Saman_B9)
Why is the answer to this question B and not D?
If the SHC arrived at by experiment is lower than the textbook value this means the temperature of the block would rise more than expected given the amount of heat put in.

the block having a smaller mass than estimated could explain it having a higher temperature than expected
the block losing heat to the environment can't explain that - it would make the temperature rise of the block lower and the SHC look higher
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CraigFowler
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(Original post by Saman_B9)
Why is the answer to this question B and not D?
Rearranging c= E/m×theta means that to have lower value would mean either higher mass so smaller c or less energy put in again smaller c.
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Saman_B9
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(Original post by Joinedup)
If the SHC arrived at by experiment is lower than the textbook value this means the temperature of the block would rise more than expected given the amount of heat put in.

the block having a smaller mass than estimated could explain it having a higher temperature than expected
the block losing heat to the environment can't explain that - it would make the temperature rise of the block lower and the SHC look higher
Thanks for explaining
I could understand it more easily now
My careless mistake
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