Paulina P2

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Author:
McAuley
ID:
143148
Filename:
Paulina P2
Updated:
2012-03-22 11:35:57
Tags:
Physics
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Description:
Physics
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  1. what's speed?
    amount of distance covered in certain amount of time.
  2. what's the equation for speed?
    distance/time
  3. what's the equation for acceleration?
    velocity/time
  4. what's the equation for force?
    mass x acceleration
  5. what's mass?
    it's amount of stuff that an object has.
  6. what's weight?
    it's the amount of force pulling you down.
  7. what's the equation for workdone?
    force x distance
  8. what are the units for energy?
    jeuls
  9. what's eqaution for gravitational potential energy?
    mass x gravity x height
  10. what's power?
    it's how quickly it can convert energy. it tells us how quickly energy can be transferred.
  11. what's the equation for power?
    energy/time
  12. what are the units for power?
    watts
  13. what's the equation of momentum?
    mass x velocity
  14. what's charge?
    charge is number of electrons in a circuit.
  15. what's current?
    it's number of electrons passing through a point per second.
  16. what's background radiation?
    it's a radiation emitted by certain resources
  17. what are the different types of background radiation?
    radon gas, cosmic rays, medical x-rays, food, nuclear industry, rocks and building materials.
  18. what is nuclear fission?
    it's splitting big nuclei into 2 or more smaller nuclei.
  19. what are the 2 sources used in fission?
    Uranium and Plutonium
  20. what is nuclear fusion?
    it's joining of 2 small nuclei into 1 bigger.
  21. what is the breaking distance?
    it's thinking distance and braking distance added together
  22. what are the things that can effect braking distance?
    • road conditions e.g. surface
    • worn tyres
    • brake quality
    • weather i.e. rain, ice and snow
    • mass of the car
  23. what are the things that effect thinking distance?
    • tiredness
    • alcohol and drugs
    • old age
    • distractions e.g. mobile, radio etc.
  24. what are the units for force?
    newtons
  25. what are the units for current?
    amps
  26. what are the units for charge?
    columbs

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