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Worksheets2ND YEAR INTEGRATED SCIENCE EXAM PART 1
Total questions: 55
Worksheet time: 41mins
All of the following contains acids except:
grapes
oranges
toothpaste
vinegar
Acids turn:
i) Blue litmus paper red
i) Red litmus paper blue
only i
only ii
both i and ii
neither i and ii
The taste of an Alkali is:
Sour
Bitter
Salty
Sweet
The pH of pure Water is:
1
7
6
8
Acids + bases -> (a) + water
All the living things in the environment are collectively known as:
abiotic factors
microorganisms
biotic factors
physical factors
Plants always begin the food chain because they are :
herbivores
carnivores
consumers
producers
Grass-> Bird -> Cat
In the food chain above, the bird is classified as:
herbivore
carnivore
omnivore
producer
Plants need animals and animals need plants.
true
false
How do pollutants NOT get into the environment?
combustion
littering
washing
conserving
Whats the function of the Mitochondria ion the human sperm?
to break the ovum
give energy to swim
contains the genes
release enzymes
Which of the following hormone is responsible for the contraction of the uterus during childbirth?
adrenaline
oxytocin
progesterone
testosterone
Approximately how many days after the start of menstruation does ovulation occur?
5
9
14
21
Asexual Reproduction involves (a) PARENT and the offspring is identical to the parent.
During Pregnancy the (a) provides all the food needed by the fetus, and removes all the waste.
Unit used to measure work done
power
watt
work
Joule
W=F X D =
N*m
Joules
Watts
Newtons
A machine is a device that helps you to do work.
true
false
(a) measures how much force you gain by using a machine rather than doing the work without a machine.
A crowbar is used to move a rock. the Crowbar is pushed down 1.5 meters and the rock moves 0.5 meters. What is the Mechanical advantage?
M.A.= DE/DR
(a)
The principle on which all machines operate is that work input is equal to work output plus energy losses.
true
false
All machines are made of a combination of the (a) simple machines.
Power is a measure of the rate at which work is done.
true
false
Objects will (a) in fluids that are more dense than they are.
objects will (a) in fluids that are less dense than they are.
Pressure= force/area
true
false
The area at the bottom of an aquarium is 0.1 square meter. The aquarium plus the water it contains exerts a force of 300 Newtons on the table that supports the aquarium. How much force is being exerted by the tabletop on the aquarium?
P= F/A
(a)
(a) is the name given to the force that pushes and object up and makes it seem to loose weight in a fluid
The (a) or ramp, is the simplest of all the machines.
The (a) is an inclined plane that moves.
The (a) is just a combination of an inclined plane and a cylinder.
A (a) is probably the simple machine that makes up many household gadgets such as scissors.
The (a) is a simple machine made up of 2 circles.
A (a) is a lever that rotates around a fixed point.
Ionic bonds are formed when electrons are shared between two atoms.
true
false
In covalent bonds many electrons are shared among many metal atoms.
true
false
The Metallic Bonds form when electrons are transferred from one atom to another.
true
false
Protons and Neutrons are composed of isotopes
true
false
Electric and Nuclear forces hold atoms together
true
false
Atoms are electrically Positive and Negative
true
false
The nucleus of Atoms are Electrically neutral
true
false
The Clouds of Atoms are Electrically negative
true
false
Elements in the Vertical Column on the periodic table are called :
(a)
The (a) metals , group 1, are so reactive that they are never found alone in nature.
The (a) elements include familiar metals like iron, copper, silver and gold.
Horizontal rows of the periodic table are called:
(a)
All cells contain the following except:
a nucleus
a cytoplasm
a cell membrane
a cell wall
Animal and plant cells have many structures in common except:
chloroplast
a cell membrane
cytoplasm
a nucleus
A group of cells performing the same function is called:
an organ
a tissue
a system
an organism
Which one of the following can be found in the respiratory system?
heart
lungs
brain
kidney
Both acids and alkali:
turn red litmus paper blue
react with reactive metals
are good electrical conductors
turn universal indicators blue
All of the following have magnets except:
motor
speaker
bankcard
bulb
All of the following are magnetic material except:
iron
steel
nickel
copper
If the North Pole of a Magnet is brought close to the North-pole of another magnet it will:
be attracted
have no effect
be repelled
create a current
All of the following conducts electricity except:
Steel nail
cupper tube
plastic cover
graphite rod
