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WorksheetsForm 2 Science Revision (Chapter 4 - 8)
Total questions: 45
Worksheet time: 25mins
Which are the examples of the types of forces? (3)
buoyant force
kinetic force
elastic force
normal force
Weight
buoyant force
frictional force
gravitational force
Based on the pictures, force can ..........
change shape of an object
move a stationary object
change the speed of a moving object
change the direction of a moving object
If buoyant force is smaller than the weight of the object, the object will ......
sink
float
remain the same
No changes
If the buoyant force is higher than the weight of the object, the object will ......
sink
float
remain the same
no changes
Second Class Lever
Third Class Lever
Which shoes exert higher pressure?
If the bottle if transferred to the hot water, the balloon will ..........
increase the size of the balloon
decrease the size of the balloon
remain no changes
What is FORCE?
Force represents the power of anything.
Force is the ability of something to do work.
Force is the pulling on an object.
Force is the pull or push that is upon on an object.
The S.I unit for ENERGY and FORCE.
Energy: Newton ; Force: Joule
Energy: Kelvin ; Force: Newton
Energy: Joule ; Force: Newton
Energy: Kilogram ; Force: Newton
When two different types of object are rubbed together, ........ are transferred from one object to the other.
protons
electrons
....... used to detect static electrical charges.
ammeter
voltmeter
galvanometer
electroscope
The direction of magnetic field moves from the ...... to the .........
South, North
East, West
North, South
West, East
Copper is classified as a conductor.
Why?
Electric current travels easily through copper.
Copper may gain or lose electric charges.
Copper resists the flow of electrical current.
Copper is an insulator.
An electromagnet helps to........
lift up a piano from the street to the fourth floor of a building.
separating the mixture of coins and quartes.
remove the metal objects from trash at a recycling centre.
remove the glass objects from trash at a recycling centre.
How to increase the strength of an electromagnet?
coil the wire around an aluminium core
add more coils of wire
decrease the amount of electric current
remove some coils of wire
Same charges .......... each other.
touch
feel
repel
attract
The ......... the wire, the .......... the resistence. (2)
shorter, greater
longer, greater
shorter. lower
longer, lower
The electrical wiring system in our home is connected in ..........
series circuit
parallel circuit
The properties of an acid. (3)
tastes sour
corrosive
has pH value higher than 7
changes the colour of blue litmus paper to red
The pH value of toothpaste.
8
14
1
7
The acid can be found in the carbonated drinks.
Tartaric acid
Carbonic acid
citric acid
sulphuric acid
What acid or alkali are used to make car batteries?
citric acid
hydrochloric acid
sulphuric acid
formic acid
What acid or alkali are used to make soap?
Hydrochloric acid
sodium hydroxide
ammonium solution
sulphuric acid
What substance has a pH of 7?
lemondade
water
coffee
bleach
Shampoo is alkaline whereas carbonated drinks are acidic.
False
True
The lower the pH value, the lower the strength of an acid.
False
True
Acids and alkaline only show their characteristic in the presence of water.
False
True
THREE fruits that have acidic properties.
Which method of water purification can eliminate odour?
boiling
chlorination
sedimentation
distillation
The TWO elements that found in water molecules.
Nitrogen
Oxygen
Hydrogen
Carbon
TWO methods to kill microorganism found in the water.
Oxidation
Chlorination
Distillation
Filtration
Water molecule is made of ..... of hydrogen and ......... atom of oxygen.
3, 2
1, 2
2, 2
2, 1
TWO processes (absorbs heat energy) during the changes in the state of matter.
freezing and evaporation
evaporation and condensation
boiling and melting
freezing and condensation
During electrolysis, the ...... gas is produced at the anode whereas the ........ gas is produced at the cathode.
oxygen, hydrogen
hydrogen, oxygen
THREE physical appearance of pure water.
hopeless
colourless
odourless
tasteless
speechless
Insents like daddy longlegs can move on the surface of the water because .........
water has higher density than insects
water is heavier than the insects
Water has lower density than insects
water has high surface tension
A "pop" sound is heard. What is the gas name?
nitrogen
oxygen
carbon
hydrogen
For the Pure Water
The melting point is ......°C and
boiling point is .......°C
100, 100
0, 100
100, 0
0, 0
Measles, chicken pox, influenza
Non-infectious diseases
Infectious diseases
The organisms that can cause disease is called.......
bacteria
pathogen
virus
disease
Covid-19 disease
is an example of ....... disease that transmitted through ......... transmission.
waterborne, water
touch, parasite
airborne, virus
airborne, droplet
Cholera, typhoid are the diseases that transmitted through ........
air
touch
water
vector
Animal that transmit pathogen from one host to another is called .........
species
vector
predator
prey
