Form2 Matter
-
Upload
nor-shafizan-nordin -
Category
Documents
-
view
225 -
download
0
Transcript of Form2 Matter
-
8/8/2019 Form2 Matter
1/16
CHAPTER 3CHAPTER 3
MATTERMATTER
BY: NOR SHAFIZAN BT.BY: NOR SHAFIZAN BT.NORDINNORDIN
-
8/8/2019 Form2 Matter
2/16
MATTERMATTER
Matter has massand occupy space
a) What is thingb) What is matter
State of matter
a) What is matter
made up of?
b) Three state ofmatter
c) Arrangement anddevelopment of
particles in matter
Concept of density
a) Concept
b) Simple problemson density
c) Why some solidand liquid floating
d) Solving simpledaily problem related
To density
The use of propertiesof matter in everyday
life
a) Application of thedifferent state of
matter
b) Application ofdensity
-
8/8/2019 Form2 Matter
3/16
Matter has massand occupy space
b) MATTER
Definition: anything that hasmass and occupy space iscalled matter
Everything around us ismatter
Living
Non living
a) THING
Definition: all things around ushave mass and occupy space.
Example:
Books in the bag
Water in beaker
Air in balloon
-
8/8/2019 Form2 Matter
4/16
State of matter
a) What is matter made up of ?
Matter made up of very small particles
There are spaces between particles becausethey are discrete
To prove we use copper sulphate diffusion test
Particles of matter can move
-
8/8/2019 Form2 Matter
5/16
b) Three state of matter
1) Solid Example: rocks, animals, trees
2) Liquid Example: tea, rain, perfumes, alcohol
3) Gas Example: oxygen, hydrogen, carbon
dioxide
-
8/8/2019 Form2 Matter
6/16
c) Arrangement and development ofparticles in matter
SOLID LIQUID GAS
DIAGRAM
PARTICLES
ARRANGMENT close
quite close but not as
solid
very far from each
other
MOVEMENT vibrate on their ownposition move freely over oneanother move freely atrandom
FORCE BETWEEN
PARTICLES very strong less strong weak
KINETIC ENERGY little energy more energy a lot of energy
DENSITYhigh moderate low
-
8/8/2019 Form2 Matter
7/16
Concept of density
a) Concept
1) General concept Every different thing of the same volume do not
have the same mass Example stone and wood with the same volume. Stone have more mass than wood Stone have high density than wood
2) Definition Density is defined as the quantity of mass
contained in the substance for a unit volume
-
8/8/2019 Form2 Matter
8/16
3) Formula
DENSITY= MASSVOLUME
4) Unit
kg/m3 (kilogram per cubic metre)
g/cm3 (gram per cubic centimeter)
1ml=1cm3
-
8/8/2019 Form2 Matter
9/16
Experiment: Finding the density ofExperiment: Finding the density ofan objectan object
Weigh the mass of 5 marbles 30g
Reading of water level without marbles (initial reading) 20ml
Reading the water level after putting in 5 marbles 30ml
Volume of 5 marbles (30-20)ml
10ml
1ml=1cm
10ml=10cm
Density of marbles
D= mass/volume D= 30g/10cm
D= 3g/cm
-
8/8/2019 Form2 Matter
10/16
b) Simple problems on density
-
8/8/2019 Form2 Matter
11/16
c) Why some solid and liquid floating
STATE MATERIAL DENSITY(g/cm3)
SOLID Cork 0.25
Teak wood 0.85
Glass 2.6
Copper 8.9
Lead 11.4
Gold 19
LIQUID Kerosene 0.7
Alcohol 0.8
Water 1
Sea water 1.03Mercury 13.6
GAS Hydrogen 0.00009
Oxygen 0.0014
Air 0.0012
Ability of the substance to float isdepend on it density compared tothe density of water.
Density of water is 1.0 g/cm3
Substance with density lowerthan 1.0g/cm3 ( 1.0g/cm3) willfloat in the water
Ex: cork, alcohol, oxygen
Substance with density higherthan 1.0g/cm3 ( 1.0g/cm3) willsink in the water
Ex: lead, mercury
-
8/8/2019 Form2 Matter
12/16
d) Solving simple daily problemrelated to density
To identify the purity of thesubstances
Coz density of the substance is fixed
Example : golds density is 19.3g/cm3. Themore or less amount from that indicate that thegold is fake.
To carry heavy object Use helium gas
Example: special balloon filled with helium gasthen the balloons tied to the heavy object.
-
8/8/2019 Form2 Matter
13/16
The use of properties of matter ineveryday life
a) Application of the different state of matter
Each state has its own characteristic and benefit
Gas Special properties of gas is easily compressed and liquefied under high
pressure.
So gas used as fuel under high pressure and stored in gas cylinder foreasy use and transport.
Pumped into tyres to be used as wheel due to it easily compressedproperty.
Compressed oxygen used in hospitals to supply oxygen Diver used aqualungs which contain liquefied oxygen to stay longer
underwater
Liquid Special properties of liquid is takes up the shape of its container and
easily diffuse Used as perfume and liquor with beautiful containers
Solid Special properties of solid is strong substance Material such as iron used to build bridges and tracks
-
8/8/2019 Form2 Matter
14/16
b) Application of density
1. Hot air balloons
2. Floats
3. Rafts
4. Logs
5. Fishing net
6. Submarines
Submarines can change its density because theexiatance of large ballast tank.
Submarine moving down : filling the ballast tank withsea water makes the submarines denser than seawater and sinks.
Submarines rising : emptying the ballast tank makesthe submarine less dense and enables it to rise to thesurface of the sea.
-
8/8/2019 Form2 Matter
15/16
THE END
-
8/8/2019 Form2 Matter
16/16
ExercisesExercises
3.1(no. 1,2)
3.2(no. 2,3)
3.3 (no. 1-7) 3.4(no. 1-3)
Summary chart
Review question (all)