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Y9 General science exam revision
Y9 General science exam revision
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1
what is the law of conservation of energy?
Energy cannot be created, destroyed, transfered or transformed
Energy can be created or destroyed. it cannot be transfered and transformed
energy cannot be created. it can be destroyed, transfered and transformed
Energy cannot be created or destroyed, it can be transfered & transformed
2
Which of the following describes a chemical change?
New smell
lost or gained mass
colour change
change state of matter
3
heating a substance causes particles to....?
lose energy, come closer together, move less
lose energy, spread out, move less
gain energy, come closer together, move more
gain energy, spread out, move more
4
which of the following are elements?
Yellow and Green
Green
yellow
Blue and green
5
Where would an object have the most potential energy?
It never has potential energy
On the way down a hill
The bottom of a hill
The top of a hill
6
Batteries store energy as ..... energy?
Solar
Motion
Chemical
Electrical
7
Animals that feed on both plants and animals are...?
Carnivores
Detritivores
Herbivores
Omnivores
8
Is there air inside of an empty bottle?
if i blow into it
yes
no
sometimes
9
compressed gasses....
Are spread apart so are flammable
Are spread apart so become air
Are pushed close together so act like a solid
are pushed close together so act like a liquid
10
The centre of the atom is called ...?
Centre
Core
Neutron
Nucleus
11
What is the charge of a neutron?
Positive
Negative
Neutral
12
Which organelles do plant cells have that animal cells do not?
Chloroplasts and a nucleus
Chloroplasts and a cell wall
Chloroplasts and mitochondria
Chloroplasts and a cell membrane
13
photosynthesis requires the following ingredients
Glucose and Carbon Dioxide
Oxygen and water
Carbon dioxide and water
Glucose and oxygen
14
An inflated balloon is placed in the fridge. Which statement describes the movement of the gas particles in the balloon?
The particles move faster and come closer together
The particles move slower and come closer together
The particles move slower and go further apart
The particles move faster and go further apart
15
In a hydropower plant, the water stored in the dam has..... energy?
kinetic
electrical
chemical potential
gravitational potential
16
Will a varigated leave do photosynthesis in the yellow parts?
Yes - photosynthesis requires yellow pigment
Yes - photosynthesis happens all over the leaf
No- photosynthesis requires green pigment
No- the sun cannot reach it
17
where do plants get their energy from?
herbivores
the sun
the roots
the earth
18
which of the following are molecules?
Yellow and Green
Green
yellow
Blue and green
19
which states of matter have the ability to flow?
liquid and gas
solid
Solid and liquid
gas
20
A food web is...
A set of interconnected species
A set of inconnected food chains with trophic relationships
The trophic levels that can be observed in an ecosystem
The set of prey species that are consumed by animals in an ecosystem
21
photosynthesis produces the following products
Oxygen and water
Glucose and oxygen
Carbon dioxide and water
Glucose and Carbon Dioxide
22
What must you do first when lighting a bunsen burner?
Light the match
Turn on the gas
Check the air hole is closed
Check the air hole is open
23
What does it mean if something is energy efficient?
Energy comes from the electricity and is turned into light
Most or all the energy is transferred into the ‘purpose’ of that object
The energy has changed form
Some of the energy has been tranferred but also creates a lot of heat
24
Wind turbines convert....?
Electrical energy into kinteic energy
Kinetic energy into electrical energy
Electrical energy into wind energy
Wind energy to kinetic energy
25
What is the order of a scientific write up
Aim, Method, results, conclusion, discussion
Aim, hypothesis, results, method, conclusion
Aim, hypothesis, method, results, conclusion
Aim, method, conclusion, graph, discussion
26
Which seed is dispersed by sticking to animal fur?
D
C
B
A
27
What type of flame is produces if the air-hole of a bunsen burner is open?
Hot and Yellow
Hot and Clean
Cool and Yellow
Cool and Dirty
28
A rock is thrown straight up. Which statement is correct?
The kinetic energy increses and the potential energy decreases
The total energy of the rock increases
Both the kinetic energy and potential energy stays the same
The kintetic energy decreases and the potential energy increases
29
What is the charge of a proton?
Negative
Neutral
Positive
30
All food chains start with ....?
A Producer
A herbivore
The sun
the primary consumer
31
in equations used in chemistry, physics and biology, the arrow represents....?
The one that is used
The movement or flow of energy
which direction its going
what the important part is
32
Oil, Natural gas and coal are examples of....?
Biofuels
Fossil Fuels
Renewable resources
Geothermal resources
33
At what position does the pendulum have teh greatest gravitational potential energy?
Position B
Postition C
Position D
34
What is the function of the roots of a plant?
To absorb water and nutrients from the soil
To help photosynthesis
It helps the plant feel where to grow
To make food from the soil
35
In a measuring cylinder, a rock displaces the water from 20mL to 23mL. what is the volume of the rock?
43mL
23mL
20mL
3mL
36
which of the following are compounds?
yellow
Yellow and Green
Green
Blue and green
37
If 0 blocks = 60cm above a desk, and 3 blocks = 30cm above the desk how many blocks are needed to reach the desk?
7
6
5
4
38
When focusing a microscope, the objective lens is 40x and the eye piece is 10x... what is the total magnification?
40x
4x
400x
10x
39
What are 3 things that biological drawings must have?
Pencil, shading and labels
Pencil, single lines and labels
Pencil, ruled lines and labels
Pencil, feathery lines and labels
40
which states of matter have a fixed shape?
Solid and liquid
gas
liquid and gas
solid
41
Iodine is used to show that a plant has produced.....?
Oxygen through photosynthesis
Starch through photosynthesis
Starch through respiration
Water through respiration
42
An atom is made up of:
Neutrons, electrons and molecules
Ions, protons and electrons
Electrons, neutrons and protons
Molecules, neutrons and ions
43
Organisms feeding on other living organisms as a source of energy and nutrients are...?
Decomposers
Consumers
Pests
Producers
44
What is the change of state from a solid straight to a gas called?
Freezing
Evaporating
Sublimation
Melting
45
What is the charge of an electron?
Negative
Positive
Neutral
46
cooling a substance causes particles to....?
gain energy, come closer together, move more
gain energy, spread out, move more
lose energy, come closer together, move less
lose energy, spread out, move less
47
which states of matter have a fixed volume?
solid
gas
liquid and gas
Solid and liquid
48
Which of the following substances are ALL elements?
Water, Air, Oxygen
Air, Oxygen, Nitrogen
Iron, Sulfer, Oxygen
Carbon Dioxide, Iron, Salt
49
What equipment is needed to heat 200mL of liquid in the science lab?
Bunsen burner, conical flask, tripod, protective mat
Bunsen burner, wretort stand, beaker, protective mat
Bunsen burner, tripod, gauze mat, beaker, protective mat
Bunsen burner, boiling tube, test tube holder
50
As an object moves faster, it's kinteic energy....?
Increases
Stays the same
Decreases
