WorksheetsTest of Material
Total questions: 35
Worksheet time: 20mins
Which statement best describes the particle theory of matter?
Matter is continuous and motionless
Matter is made of tiny particles that are always moving
Matter only exists as solids
Matter changes particles when heated
Why do solids have a fixed shape?
Their particles move freely
Their particles are far apart
Their particles vibrate in fixed positions
Their particles have no attraction
Which statement about liquids is correct?
Definite volume
No definite volume
definite shape
No definite shape
Gas particles differ from liquid particles because gas particles is....
Have stronger attractive forces
closely packed
Move randomly at high speed
Only vibrate in fixed positions
Melting is the change of state from....
Liquid to gas
Solid to liquid
Gas to liquid
Solid to gas
What happens to particles when a substance is heated?
They move slower
They gain energy and move faster
They lose energy
They stop moving
Sublimation is a change from....
Liquid to solid
Solid to gas
Gas to liquid
Liquid to gas
Which property shows how hard a material is to scratch?
Density
Hardness
Elasticity
Solubility
Which material is a good conductor of electricity?
Plastic
Wood
Copper
Rubber
Which of the following is a physical change?
Burning paper
Rusting iron
Melting ice
Cooking eggs
A student places an ice cube on a metal plate and another ice cube on a plastic plate at room temperature. The ice on the metal melts faster. Why does this happen?
Metal has a higher density
Metal is a good conductor of heat
Plastic has a higher melting point
Plastic absorbs water
Two objects have the same volume but different masses. Which conclusion is correct?
They have the same density
The object with smaller mass is bigger density
The object with greater mass is bigger density
Density depends only on volume
A student dissolves sugar in hot water and in cold water. The sugar dissolves faster in hot water. This happens because....
Hot water has more sugar
Sugar becomes lighter in hot water
Particles in hot water move faster
Hot water has less volume
A metal block has a mass of 120 g. When placed in a measuring cylinder, the water level rises from 50 cm³ to 80 cm³. What is the density of the metal?
2 g/cm³
3 g/cm³
4 g/cm³
6 g/cm³
Two objects A and B have the same mass of 200 g. Object A has a volume of 50 cm³ and object B has a volume of 100 cm³. Which statement is correct?
Object A is less density than object B
Object B is bigger density than object A
Both have the same density
Object A is bigger density than object B
A stone sinks (tenggelam) in water but floats (mengapung) in a liquid X. The density of water is 1 g/cm³. Which value could be the density of liquid X?
0.5 g/cm³
0.8 g/cm³
1.0 g/cm³
1.2 g/cm³
A cube of material has sides of 4 cm each and a mass of 256 g. What is the density of the cube? (a) g/cm3 (answer only by number)
An object has a density of 2.5 g/cm³ and a volume of 40 cm³. What is its mass? (a) g (answer only by number)
An object has a mass of 300 g and density of 1.5 g/cm³. If the object is cut into two equal pieces, what is the density of each piece?
0.75 g/cm³
1.5 g/cm³
3 g/cm³
150 g/cm³
An object has a mass of 90 g and a density of 3 g/cm³. What is its volume? ...cm³ (answer only by number)
(a)
Why are metals good conductors of heat?
They are flexible
They have high density
Heat passes through them easily
They are lightweight
Which material is an alloy?
Iron
Copper
Steel
Aluminium
Which type of glass is used to make laboratory apparatus?
Optical glass
Architectural glass
Borosilicate glass
Glass wool
Glass is commonly used for windows because it is.....
Flexible and opaque
Transparent and waterproof
Soft and malleable
Ductile and strong
Which plastic is commonly used to make water bottles?
PVC
Nylon
PET
Acrylic
Why is polycarbonate used to make helmets?
It is brittle
It is transparent
It is very strong and low density
its flexible and ductile
Which substance is acidic?
Soap solution
lemon juice
salt
fizzy drink
Acids turn blue litmus paper into....
blue
red
yellow
green
Alkalis usually feel.....
Dry and rough
Sticky
Slippery and soapy
Sour
Which indicator can show different pH values with different colours?
Litmus paper
Universal Indicator
Limewater
Water
What is the pH of a neutral solution?
0
5
7
14
A solution with pH 2 is....
strong acid
weak acid
strong alkali
weak alkali
Neutralisation occurs when.....
Two acids react
An acid reacts with an alkali
Two alkalis react
Water evaporates
What are the products of neutralisation?
acidic solution
alkali solution
salt
water
Why is toothpaste slightly alkaline?
. To clean teeth
To taste better
To neutralise acids in the mouth
To increase acidity
