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    (Original post by Adamtoo)
    I put them together but idk, for the second point I said the material/object the mug is placed on
    That's correct
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    (Original post by shohaib712)
    For the mug qustions
    Could you put volume of liquid
    I think it had to be about the mug itself apart from the material so the answer was something like the colour


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    (Original post by CaSama9)
    I don't think so because similar could suggīest greater or larger, don't worry I said greater haha
    Haha ok but in the textbook it said similar not same so thats why i put it
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    For the infrared and microwaves question I said they both travel at the speed of light in a vacuum and they are both transverse waves.
    Would that get me 2 marks?
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    (Original post by snapchatter)
    Thats what I put down. My friends said it was wrong. 25000/something= 340m/s. Are you certain?


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    I can't remember the details of the question to be honest with you, but I did double-check and I didn't see anything wrong with it? I can't really remember it tho

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    (Original post by B3ASTy)
    for the rural one could i have put that it would be expensive connecting to the national grid so the amount of electricity generated wouldn't be worth it?
    Same I said there's a small community in the area so the costs of all the transformers and cables wouldn't be worth it..?
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    mobile phones - microwaves
    infrared- optical fibre

    similarities :

    transverse waves
    they travel at the same speed through a vacuum.
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    (Original post by vxrz)
    No. The full 1 mark will be given only if you wrote Cosmic Microwave Background Radiation.
    I think they would accept that as that is pretty much the answer but you only forgot one word


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    could you say bend instead of spread out for the diffraction question ?
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    (Original post by Yusuf90)
    For the infrared and microwaves question I said they both travel at the speed of light in a vacuum and they are both transverse waves.
    Would that get me 2 marks?
    Yes they are both properties


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    (Original post by greenapple10)
    could you say bend instead of spread out for the diffraction question ?
    The waves spread out


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    It had a glass base...glass dont have free electrons? Does it?🤔
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    For the control variables question would the same room/surrounding temperature be correct?
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    What was the answer for the waves diffracting relating to the size of the insect??


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    (Original post by Omz123)
    It had a glass base...glass dont have free electrons? Does it?🤔
    no it doesn't, only metals do.
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    (Original post by greenapple10)
    mobile phones - microwaves
    infrared- optical fibre

    similarities :

    transverse waves
    they travel at the same speed through a vacuum.
    Mobile phones infrared?
    Microwaves I had as transmission signals?
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    what about the last question about the convection current of the coffee?
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    Do you think I'd get the mark for saying that both waves travel at 3 x 10^8 but I didn't write in a vacuum?
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    (Original post by Imas1501)
    What was the answer for the waves diffracting relating to the size of the insect??


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    waves diffract same as/equal to size of insect for max diffraction
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    (Original post by greenapple10)
    no it doesn't, only metals do.
    What did you have for that then? I knew glass is a poor conductor, but how else can you explain energy transfer by conduction in a glass? there must be electrons free to move?
 
 
 
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