AS Paper 2 Notes

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10 Terms

1
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How do you read Vernier Callipers?

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2
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<p>What is the reading here?</p>

What is the reading here?

  • Look at large mm area (on left) and see how far up you can go before you hit the finer measuring part (on the right). Then continue up the right until 1 line is in line with the left hand side. Add these 2 together (in this case 2 + 0.7).

3
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<p>What would the total perpendicular distance be if you took moments about the ball.</p>

What would the total perpendicular distance be if you took moments about the ball.

0.12 + 0.025 (since centre of mass of sphere)

4
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Convert 1000kWh to W

  • 3.6×10^9 W (remember its h not h^-1)!!

5
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Why would the average velocity of somebody who has returned to the place they started be 0ms-1 regardless of if they sped up or slowed down?

  • Since V=S/T where S is displacement, if the displacement is 0, then 0/any time will be 0!

6
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Is 1J = 1Nm?

Yes

7
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term image

  • D, remember the CURRENT WILL BE THE SAME EVERYWHERE SO YOU CAN WORK OUT THE CURRENT BY USING THE TERMINAL PD!

8
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Are neutrons massless?

OBVIOUSLY NOT!

9
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What number is bigger: 4×10^-7 or 8×10^-7?

8×10^-7!!

10
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