PHYSICS IS FANTASTIC

TEKNIK MENJAWABFIZIK KERTAS 2

SELAMAT DATANG

Paper 2 ( 100 )Paper 2 ( 100 )Part A ( Structures ) => Part A ( Structures ) => 60 60

Part B ( Observing ) => Part B ( Observing ) => 2020

Part C ( ChoosingPart C ( Choosing)) => => 2020

ANALYSIS- PASS YEARS ESSAY QUESTIONSANALYSIS- PASS YEARS ESSAY QUESTIONS

Analisis spmTahun Q9 Q10 Q11 Q122004 Light /mirror

pericope. .Radioactive

Use of radioactive –factory

Heat ( food container)

Electromagnet/ Electronic

Transformer / diod

2005 Pressure Archimedes

( hydrometer)

Waves(Location for jetty /

retaining wall)

Light Lens.(presbyopia)

Electomagnet (transformer- transmission electricity)

2006 Light / Lens(astronomic

telescope )

Electromagnet(motor a.c—d.c)

Heat ( car Radiator) Radioactive(sterilization of

med. equipments)

2007 Pressure Bernoulli( Sailboat)

Electronic Transistor (On when dark–On when hot)

Force and motion(Safety feature for

lorry)

Waves (spec. for radar

systems )

2008Force and

motion(elasticity/safety

in sport)

Radioactive(safety in handling radioactive source)

Light Total internal

reflection ( fibre optic)

Waves Retaining wall

2009 Pressure (Vacuum cleaner)

Radioactive(halt life/ treatment

cancer)

Heat ( Water flask )

Electricity( non-ohmic / lampfilament )

Analisis mengikut tajukTahun 2 3 4 5 6 7 8 9 10

2004 I I I I

2005 I I I I

2006 I I I I

2007 I I I I

2008 I I I I

2009 I I I I

I --- Part B I ---- Part C

Q.12-2008

• A new harbour is to be built at a new location. The suggested new location is either at a bay or a cape. Four models for the structure of the retaining wall are given. Table 12 below shows the location and the characteristics of the four retaining walls.

Worksheet

• Explain the best location and the suitability of each characterictics in Table12.

• Determine the most suitable retaining wall to be used.

• Give the reason for your choice.

Answer Characteristic Explaination / reasonThe ______ Water is calmer

______retaining wall.

Decrease the wavelength / higher water pressure at

higher depth.

______ surfaceReduce energy, wave is

reflected at different direction.

______ retaining wall

Protect form high wave / overflow of water.

8 marks

BAY

SLOPING

UNEVEN

HIGH

The most suitable __________________ is _____

Because _________________________________ ________________________________________

2 marks

WRETAINING WALL

LOCATED AT BAY,

SLOPING RETAING WALL,

UNEVEN SURFACE AND

HIGH RETAINING WALL

TOTAL : 10 marks

Pemarkahan -- kes 1

1. Maximum ONLY 4 marks

EXPLAINING ALL THE TYPE OF RETAINING WALL.

BUTTTT……

NOT CHOOSE ANYTHING OR CHOOSE MORE THAN ONE RETAINING WALL.

MARKS given only for the CORRECT REASONs

Pemarkahan -- kes 2 • EXPLAINING ALL THE CHARACTERISTICS

OF given RETAINING WALL

• BUTTTT……CHOOSE wrongly

MARKS only will be given AT WHAT YOU CHOOSE

MAX--- 8 MARKS

Characteristic

Explaination / reason

____melting point

Can withstand high temperature

______resistance

More power produce

______ ability to break at

high temperature

Long lasting / Can withstand high temp /

______ oxidation level

Prevent rusting / Less corrosive

HIGH

low

low

LOW

The most suitable _heating element____ is _____

Because _________________________________ ________________________________________

P

,high melting point,low resistance,

low ability to break at high temperature, and

low oxidation level.

NO.3Characterist

icExplaination / reason

____specific heat capacity.

Easy get cold / becomes cool quickly

______size of ice cream box

Easier to carry

Material for outer box:

______

Poor conductor of heat

______ colour of outer box

Does not absorb heat from surrounding quickly

LOW

smaller

Plastic PVC

Bright

The most suitable _ice cream container_ is _____

Because _________________________________ ________________________________________

RLow specific heat capacity, small size of ice

cream box, material for outer box is plastic pvc

and bright colour of outer box

No. 4Characterist

icExplaination / reason

____ diameter Reduce the resistance of the cables

_____density The cables will be lighter ______ rate of

expansionLess expansion and sagging in the cable

during hot day______ melting point

Can withstand high temperature / does not

melting easily

LOW

HIGH

Large

LOW

The most suitable ______cable_______ is _____

Because _________________________________ ________________________________________

Q

Large diameter, low density,

Low rate of expansion and high melting point.

Physics is Fantastic

Good Luck & Thank

YouPn. Aswati Ishak