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Sport and Psychology and Maths > MATHS > Flashcards

MATHS Flashcards

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1
Q

Which of the Distance, speed or Time do you have to times, or divide

A

Distance = Speed x Time
Speed = Distance ÷ Time
Time = Distance ÷ Speed

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2
Q

Density

A

Density = Mass ÷ Volume

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3
Q

What Units do we times or divide by 100

A

Ml-> Kl-> L-> Ml
Kg-> G

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4
Q

What is a name that reminds me of the units Km M Cm Mm

A

(Kc) (Kasey) (Casey)

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5
Q

What is a square number

A

(Sn) x (Sn)
(2x2) (3 x 3) (etc.)

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6
Q

What is a cube number

A

(Sn) x (Sn) x (Sn)
(2 x 2 x 2) (3 x 3 x 3) (etc.)

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7
Q

Prime Numbers are…

A

Number can only times by itself
(only times 3 x 1 = 3, no other multiple equals 3)

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8
Q

Area of a Rectangle

A

Length x Width

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9
Q

Area of a Square

A

Length x Width

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10
Q

Area of a Circle

A

π r² ((Number of Radius) Type in character with πr² (Round up to decimal place))

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11
Q

Area of a Triangle

A

Base x Height = (Answer = half answer to base x height)

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12
Q

Area of a Parallelogram

A

Base x Height

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13
Q

Area of a Trapezoid

A

(a+b) h (divided by two) (bottom and top number add together, that answer from adding x height, = divide by two)

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14
Q

Perimeter of a Rectangle

A

(Length + Width) × 2

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15
Q

Perimeter of a Square

A

(All sides add together)

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16
Q

Perimeter of a Circle

A

C (circumference) π x D (Diameter (Line Across Circle, Radius is Half of the Diameter))

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17
Q

What is half the Diameter

A

Radius

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18
Q

Perimeter of a Triangle

A

(All sides add together)

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19
Q

Perimeter of a Parallelogram

A

(All sides add together)

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20
Q

Perimeter of a Trapezoid

A

(All sides add together)

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21
Q

Area Units

A

(km2) (m2) (cm2) (mm2)
(Inside)

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22
Q

Perimeter Units

A

(km) (m) (cm) (mm)
(Outside)

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23
Q

Power

A

Number of times number times by itself

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24
Q

Root

A

Number that times by itself
(√25 = 5) (5 x 5 = 25)

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25
Q

Acute Angle

A

Less than 90

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26
Q

Right angle degree

A

90

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27
Q

Obtuse Angle

A

More than 90

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28
Q

Straight line degree

A

180

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29
Q

Reflex Angle

A

More than 180

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30
Q

At a point degree

A

360

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31
Q

Angle at a point

A

Add to 360

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32
Q

Integer is a…

A

Whole number

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33
Q

Surds is

A

Any decimal numbers

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34
Q

Standard Form is…

A

Making number, big or small to make it easier to understand

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35
Q

FRACTIONS
-Cancelling down
-Times
-Divide
-Fractions of %

A

_Cancelling down
.Divide top and bottom by same number till cant anymore

-Times
.Times top and bottom together then divide both by same number till cant anymore

-Divide
.KFC

-Fractions of %
.Divide bottom and other number, (not top) then answer x top

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36
Q

Triangle
(how many times can half, times 180)

A

1 x 180 = 180

37
Q

Square
(how many times can half, times 180)

A

2 x 180 = 360

38
Q

Pentagon
(how many times can half, times 180)

A

5 x 180 = 900

39
Q

Hexagon
(how many times can half, times 180)

A

6 x 180 = 1080

40
Q

Heptagon
(how many times can half, times 180)

A

7 x 180 = 1260

41
Q

Octagon
(how many times can half, times 180)

A

8 x 180 = 1440

42
Q

Even numbers ends in…

A

0, 2, 4,6,8

43
Q

Odd numbers ends is…

A

1, 3, 5, 7, 9

44
Q

LCM stands for…

A

Lowest common multiple

45
Q

HCF stands for…

A

Highest common factor

46
Q

Multiple means…

A

Times tables

47
Q

Factors is a…

A

numbers that divide (Example: 30)

48
Q

Algebra (Sequences)

A

2, 6, 10, 14,18
= 4n -2
(because 2 times table would be 2, 4, 6, 8, 10, 14, 16, 18, sequence -2 from 2 times table every time, while from 2 -> 6, it takes 4 to get from 2 -> 6) ,

49
Q

Algebra (Fibonacci Sequence)

A

1, 1, 2, 3, 5, 8, 13
(Each number in sequence is sum of two numbers before it)
(1+1=2)

50
Q

Algebra (Multiplication)

A

Times numbers together, then put letters on with answer of numbers
(6a + 2b -> 6 x 2 = 12 = 12ab)

51
Q

Algebra (Dividing)

A

(Turn into a fraction)
(6 x p x q x q / 2 x q)
(6 ÷ 2 = 3)
p q q / q = p q
=3pq

52
Q

1 Pound

A

16 Ounces

53
Q

1 Stone

A

14 Pounds

54
Q

1 Gallon

A

8 Pints

55
Q

1 Yard

A

3 Feet

56
Q

Foot

A

12 Inches

57
Q

Ratio

A

Size of Quantities
(Apples -> Pears =
2 -> 1)
means that every 2 Apples there are 1 pear in a bowl

  • 20 : 60
    (Cancel units to lowest term)
    60 ÷ 20 = 3
    20 ÷ 20 = 1
    = 1 : 3
58
Q

Proportion
-Direct
-Indirect

A

-Direct
One quantity doubles, so does the other.

-Indirect
If one quantity doubles, other halves (goes down)

59
Q

Decimal into %

A

Multiply by 100

60
Q

% into Decimal

A

÷ into 100

61
Q

% into fraction

A

Divide by highest number
Fraction of 100, simplify if possible

62
Q

fraction into decimal

A

Divide fraction denominator and numerator

63
Q

Decimal into fraction

A

cancel down fraction to lowest form

64
Q

Vector

A

length of line shows a vector and arrows shows direction

65
Q

Translation

A

Moving object to new position

66
Q

Rotation

A

Takes object and rotates it

67
Q

Reflection

A

like looking in a mirror

68
Q

Enlargement

A

Making object bigger or smaller

69
Q

Triangle
-Equilateral
-Isosceles
-Scalene

A

-Equilateral = all sides equal
-Isosceles = 2 equal sides
-Scalene = no equal sides

70
Q

Radius

A

half the diameter

71
Q

Diameter

A

line across half the circle

72
Q

Chord

A

above the diameter

73
Q

Segment

A

inside area where chord runs across

74
Q

Sector

A

area next to radius and diameter, slice of cake cut

75
Q

Circumference

A

outside edge of the circle

76
Q

Tangent

A

Line outside circle, touches the circumference

77
Q

Mode

A

Most of something

78
Q

Median

A

middle of something in order

79
Q

Mean

A

add all numbers there together, then ÷ by how many numbers there are

80
Q

Range

A

Distance between highest to lowest number

81
Q

Estimating

A

Round numbers to easy numbers (whole numbers)

82
Q

Conversion Factors

A

If £1 = 1.6 euro, how much is 20 euros in £.p

  1. Find Conversion Factor
    (1.6) (Exchange rate)
  2. Multiply and divide
    (20 x 1.6 = £32)
    20 ÷ 1.6 = £12.50)
  3. Choose common sense answer
    (Foughly 3 euros = £2, the answer would be less than 20 euros)
    = 12.50
83
Q

Scatter Graphs

A

load of points on a graph that is a mess (correlation)
got to say whether its weak, strong, moderate or positive or negative

84
Q

Good Correlation

A

means points form a nice line, things closely related to one another

85
Q

Poor correlation

A

points all over the place so very little relation

86
Q

Positive correlation

A

sloping uphill, left to right, increase or decrease together

87
Q

Negative correlation

A

sloping downhill, left to right, if one decreases, other increase

88
Q

Graph
-Vertical line
-Horizontal line
-Main diagonal
-Other diagonal

A

-Vertical line = x=a

-Horizontal line = y=a

-Main diagonal = y=x

-Other diagonal =y=-x

Sport and Psychology and Maths (5 decks)

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