CHAPTER 10 SURFACE AREA

Question 1

capacity

Answer 1

The amount of fluid (liquid or gas) in a container

Question 2

cross-section

Answer 2

A ‘slice’ of a solid, taken across the solid rather than along it

Question 3

limits of accuracy

Answer 3

How accurate a measured value using a measuring instrument can be, equal to half of a unit on the instrument’s scale

Question 4

mega- (abbreviated M)

Answer 4

A metric prefix meaning one million

Question 5

micro- (abbreviated m)

Answer 5

A metric prefix meaning one- millionth

Question 6

prism

Answer 6

A solid shape with identical cross-sections and ends with straight sides

Question 7

sector

Answer 7

A region of a circle cut off by two radii, shaped like a slice of pizza

Question 8

surface area

Answer 8

The total area of all the faces of a solid shape

Question 9

k___- means 1___ (thousand) or 10_

1 k_____ = 1___ grams

m___ - means 1______ (million) or 10_

_ mega____ = 1______ litres

c____ - means 1/1__ (h______) or 10__

1 c________ = 1/1__ metre

m____ - means 1/1___ (t_______) or 10__

1 m_______ = 1/1___ litre

Answer 9

kilo- means 1000 (thousand) or 10³

1 kilgram = 1000 grams

mega - means 1000000 (million) or 10⁶

1 megalitre = 1000000 litres

centi - means 1/100 (hundredth) or 10^-2

1 centimetre = 1/100 metre

milli - means 1/1000 (thousandth) or 10^-3

1 millimetre = 1/1000 litre

Question 10

The l____ of accuracy of a m_______ instrument are +/- ___ of the u___ shown on the instrument’s s____.

Answer 10

The limits of accuracy of a measuring instrument are +/- 0.5 of the unit shown on the instrument’s scale.

Question 11

The p______ of a shape is the d______ around the shape, the s___ of the lengths of the sides of the s____.

The a___ of a shape is the amount of s______ covered by the shape, m_______ in square u____.

Answer 11

The perimeter of a shape is the distance around the shape, the sum of the lengths of the sides of the shape.

The area of a shape is the amount of surface covered by the shape, measured in square units.

Question 12

P_________

A=__

T________

A=1/_ (___) h

R______ and K___

A=1/_ __

Answer 12

Parallelogram

A=bh

Trapezium

A=1/2 (a+b) h

Rhombus and Kite

A=1/2 x _x y

Question 13

c__________ of circle

C = __ x _

or

C = _ x __ x _

a___ of circle

A = __ x (_)²

A = __(_)²

Answer 13

circumference of circle

C = pi x d

or

C = 2 x pi x r

area of circle

A = pi x (r)²

A = pi(r)²

Question 14

A__ s_____ = a____/360 x _pi(r)

P_______ of the s_____ = angle/___ x 2pi(_) + r + _

A___ of the s_____ = a____/360 x __(r)²

Answer 14

Arc sector = angle/360 x 2pi(r)

Perimeter of the sector = angle/360 x 2pi(r) + r + r

Area of the sector = angle/360 x pi(r)²

Question 15

The s______ a___ of a s____ is the total area of all the f____ of the solid. To calculate the s______ area of a solid, find the area of each f___ and add the areas t______.

Answer 15

The surface area of a solid is the total area of all the faces of the solid. To calculate the surface area of a solid, find the area of each face and add the areas together.

Question 16

S______ area of a closed c______

A = 2__(r)_ + _pi(_)h

Answer 16

Surface area of a closed cylinder

A = 2pi(r)² + 2pi(r)h

Question 17

1 __³ contains _ mL

1 m_ contains 1___ L or 1 _L

Answer 17

1 cm³ contains 1 mL

1 m³ contains 1000 L or 1 kL

Question 18

V_____ of a p____

V = A_

where _ = area of b___ and

_ = p_________ height

Answer 18

Volume of a prism

V = Ah

where A = area of base and

h = perpendicular height

Question 19

V_____ of a c______

V = __(r)_h

where r = r____ of c______ base and _ = p__________ height

Answer 19

Volume of a cylinder

V = pi(r)²h

where r = radius of circular base and h = perpendicular height