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    (Original post by MrTechGamer)
    Same , did we have to label it
    Yeah you had to label retina and suspensory ligaments
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    (Original post by 11Jason11)
    The other one was the Minimum frequency for ultrasound, human hearing which I put 20Hz
    thought it said the minimum for ultrasound, which would be 20,000Hz?
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    (Original post by tue)
    Yeah you had two labels (the ciliary muscle and the retina) and there were more questions on that page asking about the function of the iris an something else but I forgot
    Did you do higher? i dont remember this
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    (Original post by Lauren-x-)
    By the way, what did people put for "What supplies the centripetal force for the car going round the bend?" I put friction but I couldn't remember what the options could've been, so it's (kind of) an educated guess. I did put gravity at first but that's definitely not right, right?...
    I think it's acceleration
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    (Original post by tue)
    Yeah you had two labels (the ciliary muscle and the retina) and there were more questions on that page asking about the function of the iris an something else but I forgot
    I thought the arrow was pointing to the suspensory ligaments?
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    does anyone know the direction in which that wire was moving and was it generator effect or motor effect, cos i wrote generator
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    (Original post by 11Jason11)
    The other one was the Minimum frequency for ultrasound, human hearing which I put 20,000Hz
    ah thats right I got that too!!!
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    (Original post by Pra99)
    It was suspensory ligament and retina
    Damn it!
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    What did everyone out for the wires one? Something like which two can you compare with lengths?
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    (Original post by Smingle)
    Pretty sure the frequency for ultrasound is above 20 000Hz.
    No - it's 20Hz to 20kHz
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    (Original post by tue)
    I think it's acceleration
    ooooh..
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    (Original post by imacjack)
    for the velocity one? 12000/2400 so 5 yeah

    posted from tsr mobile
    woohoooooo
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    (Original post by Ilyas_99)
    does anyone know the direction in which that wire was moving and was it generator effect or motor effect, cos i wrote generator
    I put the motor effect, and i said it moved upwards. Some other ppl in my school put the same as me, but idk if its correct
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    (Original post by Cbrown223)
    Yeah you had to label retina and suspensory ligaments
    this was already labelled on my paper.
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    (Original post by Smingle)
    I thought the arrow was pointing to the suspensory ligaments?
    Yh.. I got it wrong
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    (Original post by amygracebroad)
    hi everyone, hope the exams went well! just wanted to share some of my p2 answers:
    for the kinetic energy (and therefore also the gravitational potential energy afterwards) I got 3.6J, and for the height of the rocket I got 7.2 metres
    for the maximum speed I got 22.5m/s
    for the current shown on the graph I got 1.7A, for the charge I got 51 coulombs and for the energy transfered I got 612J
    for the velocity of the cars after the collision I got 5m/s
    for the resistor with the greatest resistance I put C because it had the least steep gradient so it allowed the least current to flow through
    for the wires that prove length of wire affects resistance I put K and L because they were made from the same material, and K had half the resistance of L and was also half the length of L
    for 'what is nuclear fission' I put that it is the splitting of complex and unstable atomic nuclei into simpler nuclei, releasing energy and two or three neutrons
    for 'what is meant by braking distance' I put that it is the distance travelled by the veichle under the braking force
    for the six mark question I put:
    - highly concentrated but tiny positive charge in centre of atom called nucleus
    - protons have a relative mass of 1 and a charge of +1
    - neutrons have a relative mass of 1 and a charge of 0
    - both subatomic particles make up the nucleus
    - most of the atom is empty space
    - electrons are arranged in shells around the nucleus
    - electrons have a mass of 1/1840 and a charge of -1
    - an atom has an equal number of protons and electrons as there is no overal charge
    that's pretty much all I can remember tbh, think it went alright!
    Can you tel me how you worked out the maximum speed was 22.5 m/s?
    I just did 170 over 10 to get 17 which probably isn't right.
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    (Original post by Pra99)
    I bet my house that the 6 marker in p2 will be about stars
    I think you owe me a house mate Lool
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    (Original post by stardust-dream)
    I put the motor effect, and i said it moved upwards. Some other ppl in my school put the same as me, but idk if its correct
    Yes I did the same
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    (Original post by tue)
    I think it's acceleration
    Wasn't the question what is acting as the centripetal force and it was friction
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    (Original post by Jusst Haris)
    I think you owe me a house mate Lool
    Lolololol
 
 
 

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