PAPER 1 EQUATIONS Flashcards

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1
Q

(2) electrical energy transferred=

A
  • power x time
  • E=Pt
    or
  • charge x potential difference
  • E=QV
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2
Q

(2) power=

A
  • work done time/ time
  • P=W/t
  • energy transferred/ time
  • P=E/t
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3
Q

(2) electrical power=

A
  • potential difference x current
  • P=VI
  • (current)² x resistance
  • P=I²R
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4
Q

gravitational potential energy=

A
  • mass x gravitational field strength (g) x height
  • Ep=mgh
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5
Q

kinetic energy=

A
  • 1/2 x mass x speed² or velocity²
  • Ek=1/2 xm x v²
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6
Q

density=

A
  • mass/ volume
  • p=m/v
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7
Q

electrical charge=

A
  • current x time
  • Q= It
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8
Q

potential difference=

A
  • current x resistance
  • V= IR
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