February 2013 – fizzics

answers to higher unit 2 practice NAB

24 February, 2013 by mrmackenzie

Here are my solutions to the practice NAB for unit 2.

Check your own answers carefully. Did you;

mix up the equation for charged particles with those for capacitors?
remember to calculate the period of an ac signal in seconds?
make the correct substitutions for V1 and V2 in the differential amplifier question?
use “it” instead of nouns in your explanations?

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higher unit2 – practice NAB

20 February, 2013 by mrmackenzie

Here is a practice NAB for unit 2. Your unit 2 NAB is scheduled for the end of next week. Please try these questions and I shall post the solutions in a few days so you can check your progress.

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5.3 unit2 NAB

18 February, 2013 by mrmackenzie

AH unit2 NAB

18 February, 2013 by mrmackenzie

S4: work done, potential and kinetic energy

2 April, 20198 February, 2013 by mrmackenzie

We finished the transport section with a look at Work, Potential & Kinetic energy. Those of you aiming for Credit need to carry out calculations involving kinetic energy using

$E_k = \displaystyle {1 \over 2}mv^2$

Here is a video about work, potential energy & kinetic energy from Bozeman Science

httpv://www.youtube.com/watch?v=BSWl_Zj-CZs

Most of the calculations will be based on the principle of conservation of energy. Dr. Altman has an excellent series of videos examining conservation of energy examples from Roadrunner cartoons.

httpv://www.youtube.com/watch?v=oRrkeyigkiE

httpv://www.youtube.com/watch?v=cmQTTAL3WYM

httpv://www.youtube.com/watch?v=x0RHbftgbF4

I have attached a pdf handout with worked examples on potential energy, work and kinetic energy. If you want some more revision materials, try here.

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