Chap. 1 - Measurement

Question 1

What is the formula for finding the upper and lower limit / boundary to a measurement?

Answer 1

measurement +/- 0.5 * smallest unit of mesurement

Question 2

How do you find the smallest unit of measurement?

Answer 2

Take the LAST NUMBER in the measurement taken and make it the number “1”.
Make all the numbers before that “1” a zero.
e.g 7.052 = 0.001 is the smallest unit of measurement

Question 3

What is Pythagoras Theorum?

Answer 3

a^2+b^2=c^2

Question 4

List the common base units

Answer 4

Meters, Litre, Gram, Joule

Question 5

Base unit -> Kilo

Answer 5

/1000

Question 6

Kilo -> Mega

Answer 6

/1000

Question 7

Mega -> Giga

Answer 7

/1000

Question 8

Giga -> Tera

Answer 8

/1000

Question 9

Tera - Giga

Answer 9

*1000

Question 10

Giga -> Mega

Answer 10

*1000

Question 11

Mega -> Kilo

Answer 11

*1000

Question 12

Kilo -> Base unit

Answer 12

*1000

Question 13

Centi -> Milli

Answer 13

*10

Question 13

Base unit -> Centi

Answer 13

*100

Question 14

Milli -> Micro

Answer 14

*1000

Question 15

Micro -> Nano

Answer 15

*1000

Question 16

Nano -> Micro

Answer 16

/1000

Question 17

Micro -> Milli

Answer 17

/1000

Question 18

Milli -> Centi

Answer 18

/10

Question 19

Centi -> Base unit

Answer 19

/100

Question 20

1cm^3 = …

Answer 20

1mL

Question 21

1m^3 = …

Answer 21

1kL

Question 22

1t = …

Answer 22

1000kg

Question 23

1ha = …

Answer 23

10,000 m^2

Question 24

Area of a triangle?

Answer 24

1/2bh

Question 25

Area of a circle?

Answer 25

Pi*r^2

Question 26

Area of a trapezium?

Answer 26

(h/2)(a+b)

Question 27

Circumference of a circle?

Answer 27

2pir

Question 28

Kite?

Answer 28

1/2*diagonals

Question 29

Area of a sector of a circle?

Answer 29

sector size*area of circle formula

Question 30

Perimeter of a sector?

Answer 30

sector size*circumference formula + rest of given perimeter

Question 31

Surface area of a cone?

Answer 31

Pir^2+Pir*l

Question 32

What is “l” in terms of cones?

Answer 32

The “slant height” of the cone, e.g any point on the circumference of the base, up the curved surface and to the apex.

Question 33

Volume of prisms and cylinders?

Answer 33

V=A*h

Question 34

Volume of cones and pyramids?

Answer 34

V=1/3Ah

Question 35

Surface area of sphere?

Answer 35

4Pir^2

Question 36

Volume of sphere?

Answer 36

V=4/3Pir^3

Question 37

how to transfer between km^2 -> m^2, etc.?

Answer 37

multiple or divide by the the number, (100, 1000 etc.) but add a ^2.
e.g km^2 -> m^2 = *1000^2

Question 38

area of a paralellogram?

Answer 38

HEIGHT * base

Question 39

a

area of a rhombus?

Answer 39

1/2*diagonals