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GCSE Edexcel Physics 9-1 Course > Formulas for Test > Flashcards

Flashcards in Formulas for Test Deck (89)
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1

Distance travelled = ?

(Using speed)

Average speed x time


D

S T

2

Average speed = ?

Distance / time


D

S T

3

Time taken = ?

(Using speed)

Distance travelled / average speed


D

S T

4

Acceleration = ?

(Using velocity)

Change in velocity / time taken


a = (v-u)
——
t

5

Acceleration = ?

(Using force)

Force / mass

F

M A

6

Force = ?

(Using acceleration)

Mass x acceleration

F

M A

7

Mass = ?

(Using force)

Force / acceleration

F

M A

8

Weight = ?

Mass x gravitational field strength


W

M G

9

Mass = ?

(Using weight)

Weight / gravitational field strength

W

M G

10

Gravitational field strength =?

(Using weight)

Weight / mass


W

M G

11

Momentum =?

(using velocity)

Mass x velocity


P

M V

12

Mass = ?

(Using momentum)

Momentum / velocity

P

M V

13

Velocity =?

(Using momentum)

Momentum / mass

P

M V

14

Change in gravitational potential energy = ?

Mass x gravitational field strength x change in vertical height


ΔGPE = m x g x Δh

15

Kinetic energy = ?

½ x mass x (speed squared)




½ x m x v²

16

Efficiency = ?

(Useful energy transferred by the device)
——————————————————
(Total energy supplied to the device)

all x 100% to give the answer as a percentage

17

Wave speed =?

(Using wavelength)

Frequency x wavelength

V

f λ

18

Frequency of waves =?

Wave speed / wavelength


V

f λ

19

Wavelength =?

Wave speed / frequency


V

f λ

20

Wave speed =?

(Using distance)

Distance / time

D

V t

21

Distance =?

(Using wave speed)

Wave speed x time

D

V t

22

Time =?

(Using wave speed)

Distance / wave speed

D

V t

23

Change in velocity =?

Acceleration x time taken


a = (v-u)
——
t

24

Time taken =?

(Using acceleration)

Change in velocity / acceleration


a = (v-u)
——
t

25

Work done =?

(Using force)

Force x distance


Work done

F D

26

Force =?

(Using work done)

Work done / distance


Work done

F D

27

Distance =?

(Using work done)

Work done / force


Work done

F D

28

Power =?

(using work done)

Work done / time taken


Work done

Power t

29

Work done =?

(Using power)

Power x time taken


Work done

Power t

30

Time taken =?

(Using work done)

Work done / power


Work done

Power t

31

Resistance =?

(using voltage)

Voltage / current

V

I R

32

Voltage =?

current x resistance

V

I R

33

Current =?

(using voltage)

Voltage / resistance

V

I R

34

What units must displacement always be in?

m

35

What units must velocity always be in?

m/s

36

What units must force always be in?

Newtons (N)

37

What units must acceleration always be in?

m/s²

38

What units must mass always be in?

Kg

39

What units must weight always be in?

Newtons (N)

40

What units must potential energy (PE) always be in?

Joules (J)

41

What units must work done always be in?

Joules (J)

42

What units must Kinetic Energy (KE) always be in?

Joules (J)

43

What units must Gravitational field strength always be in?

Newtons / Kilogram

(N/Kg)

44

What units must height always be in?

m

45

What units must power always be in?

Watts (W)

46

What units must momentum always be in?

Kilogram metres / seconds

Kgm/s

47

What units must frequency always be in?

Hertz (Hz)

48

What units must wavelength always be in?

m

49

What units must current always be in?

Amps (A)

50

What units must efficiency always be in?

It doesn't have any units

(or %)

51

What units must potential difference always be in?

Voltage (V)

52

What units must resistance always be in?

Ohms (Ω)

53

What is the prefix "kilo" (K) in standard form?

x 10³

54

What is the prefix "mega" (M) in standard form?

x 10⁶

55

What is the prefix "giga" (G) in standard form?

x 10⁹

56

What is the prefix "pico" (p) in standard form?

E.g. Picometre

x 10⁻¹²

57

What is the prefix "nano" (n) in standard form?

E.g. Nanometre

x 10⁻⁹

58

What is the prefix "micro" (μ) in standard form?

E.g. Micrometre

x 10⁻⁶

59

What is the prefix "milli" (m) in standard form?

E.g. Millimetre

x 10⁻³

60

What units must temperature always be in?

°C

61

Energy transferred = ?

(using charge moved)

charge moved x potential difference

E

Q V

62

charge moved = ?

Energy transferred/ potential difference

E

Q V

63

Potential difference = ?

(using energy transferred)

Energy transferred / charge moved

E

Q V

64

charge = ?

current x time

Q

I T

65

Current = ?

(using charge)

charge / time

Q

I T

66

time =?

(using charge)

Charge / current

Q

I T

67

Potential difference=?

(using resistance)

Current x resistance

68

Current =?

(using potential difference)

potential difference / resistance

69

resistance =?

(using potential difference)

potential difference / current

70

power =?

(using energy transferred)

energy transferred / time taken

E

P T

71

energy transferred =?

(using power)

power x time taken

E

P T

72

time taken =?

(using power)

energy transferred / power

E

P T

73

electrical power =?

(using resistance)

current squared x resistance

P = I² x R

74

current =?

(using electrical power and resistance)

square root of (electrical power / resistance)

P = I² x R

75

resistance =?

(using electrical power)

electrical power / current squared

P = I² x R

76

Electrical power =?

(using potential difference)

current x potential difference

P

I V

77

current =?

(using electrical power and potential difference)

electrical power / potential difference

P

I V

78

potential difference =?

(using electrical power)

electrical power / current

P

I V

79

density = ?

mass / volume

m

ρ v

80

mass =?

(using density)

density x volume

m

ρ v

81

volume =?

(using density)

mass / density

m

ρ v

82

force =?

(using momentum)

change in momentum / time

Δp

F t

83

change in momentum =?

force x time

Δp

F t

84

time =?

(using force)

change in momentum / force

Δp

F t

85

Energy transferred =?

(using current)

current x potential difference x time

86

pressure =?

force normal to surface / area of surface

87

area of surface =?

force normal to surface / pressure

88

force normal to surface =?

pressure x area of surface

89

(final velocity)² - (initial velocity)² =?

2 x acceleration x distance

v² - u² = 2 x a x d