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Year 10 Science Revision for Yearly Exam 2016 Flashcards | StudBud
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Year 10 Science Revision for Yearly Exam 2016
Year 10 Science Revision for Yearly Exam 2016
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Questions
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Answers
1
What is the name of the compound KCl?
Potassium Chlorine
Potassium Chloride
Potassium Carbonate
Potassium Chlorate
2
What does the group number indicate about an element?
number of electron shells
number of electrons
number of valence electrons
number of protons
3
The units for acceleration are
m/s/s
m/s/s/s
m/m/s
m/s
4
Which object has the greatest inertia?
Bowling ball
Netball
Tennis Ball
Ping pong ball
5
The forces acting on the object are
Balanced
unbalanced
6
Bewteen 5 and 8, the object is
at rest
slowing down
travelling at a constant speed
accelerating
7
What does the arrow indicate in these equations?
A physical change
a change in mass
A chemical change
No change
8
Which represents a mixture?
Z
W
X
Y
9
A risk assessment must include
The risk and how to treat it
The risk and how to minimise it
how to minimise the risk
the risk
10
This BEST represents which of Newton's laws?
2nd
1st
3rd
11
What is this showing?
Pentadactyl limb
Transitional Fossils
Embryology
Similar biochemistry
12
Where is the Hubble telescope located?
On the moon
Orbiting the earth
It was decommissioned
In France
13
What is the equation for respiration?
glucose + oxygen --> water + carbon dioxide
Water + carbon dioxide --> glucose + oxygen
Glucose + carbon dioxide --> water + oxygen
glucose + water --> carbon dioxide + oxygen
14
What radioisotope is commonly used in medicine?
Uranium-235
Sodium-24
Cobalt-60
americium-241
15
Combustion is an example of a
endothermic reaction
exothermic reaction
16
The object will move
left
right
up
down
17
A light year is a measure of..
pH
Distance
Time
Temperature
18
Which element is more reactive than Rb?
Li
K
Cs
Na
19
What will our star turn into next?
a white dwarf
A black hole
A red giant
A neutron star
20
In an endothermic reaction, energy is
absorbed
released
21
What is the name of this compound?
Nitrogen trihydrogen
methane
Ammonia
Ammonium
22
A substance that is insoluble...
Dissolves in a solute
Does not dissolve in a solvent
Does not dissolve in a solute
Dissolves in a solvent
23
How many protons does calcium have?
2
21
40.078
20
24
How many significant figures in this number: 9.4607 × 10
12
km
7
3
4
5
25
Where is this found?
In the cytoplasm
Orbiting the nucleus
In the nucleus of atoms
In the nucleus of cells
26
Identify the correct pairing of the nitrogen bases.
A and G,C and T
A and C, G and T
A and T, G and C
27
What is produced at 11?
Sperm
Faeces
Semen
Urine
28
What galaxy do we belong to?
Centaurus A
The Milky way
Triangulum
Andromeda
29
Who is credited with the theory of evolution by natural selection?
Watson and Crick
Beadle and Tatum
Darwin and Wallace
Marie Curie
30
How many neutrons does Zn have?
65
65.39
30
35
31
What does this graph represent?
Half-life of a radioisotope
half-life of a human
a chemical reaction
Half-life of a star
32
The independent variable is the thing you
keep the same
change
measure
discard
33
What scale does this show?
Rainbow
pH
Basic
Acidic
34
Acid + base -->
Salt + hydrogen
Salt + water + carbon dioxide
Salt + water
Salt + carbon dioxide
35
An ion is a
isotope
Charged particle
metal
Element with different number of neutrons
36
The dependent variable is always graphed on the
x-axis
y-axis
37
Speed equals
time multiplied by distance
time divided by distance
distance multipled by time
distance divided by time
38
Where does meiosis occur?
In body cells
In sex cells
39
Copper Carbonate + Sulfuric Acid -->
Copper Sulfate + water + carbon dioxide
Copper sulphate + salt + carbon dioxide
Copper chloride + water + carbon dioxide
Copper Sulfide + water + carbon dioxide
40
What type of reaction are these showing?
decomposition
neutralisation
combustion
precipitation
41
How are these different?
C-12 has two less electrons
They are not different
C-14 has 3 extra protons
C-14 has two extra neutrons
42
How many chromosomes are found in a human gamete?
23
46
24
64
43
Reactions occur at a faster rate with
high temperature, small surface area, catalyst present
high temperature, large surface area, no catalyst
low temperature, large surface area, no catalyst
high temperature, large surface area, catalyst present
44
CO
2
is a
covalent compound
ionic compound
45
What is the name of this polyatomic ion?
Sulfate
Ammonium
Carbonate
Hydroxide
46
In a solution the substance that dissolves the solute is called
residue
ethanol
water
solvent
47
You must use the following when drawing a scientific diagram
just a pencil
pencil and ruler
red pen
pen and ruler
48
What does this equation represent?
Respiration
Combustion
Photosynthesis
Decomposition
49
A mutation
is a permanent change to the DNA sequence
results in super powers
is a temporary change to the DAN sequence
is always a bad thing
50
Where a stars 'born'?
In a red giant
In nebula
They have always been there so they were never 'born'
In a black hole
51
HCl, H
2
SO
4
, HNO
3
. What are these substances classified as?
Acids
Indicators
Bases
hydrocarbons
52
Bt cotton is an example of
a GMO
artificial selection
a mutation
53
What does this reaction power?
It is not involved in powering anything
The earth
Your car
The Sun
54
At time 13, the object is
decelerating
at rest
accelerating
55
True or false: Metal ions emit the same colour when heated
True
False
56
Protons and neutrons are found in the
nucleus of atoms
orbiting the nucleus
nucleus of cells
in space
57
Between time 8 and 9 the object is
accelerating
decelerating
travelling at a constant speed
at rest
58
Who invented the telescope?
Han Lippershey
Edwin Hubble
Galileo Galilei
Charles Darwin
59
Which represents an element?
Z
X
Y
W
60
Is the disease recessive or dominant?
Dominant
Recessive
61
Which colour star has the highest temperature?
Yellow
Orange
Blue
Red
62
Which type of radiation has the most penetrating power?
Alpha
Gamma
Beta
Eplison
63
What colour would water be in universal indicator?
Red
Green
Blue
Purple
64
What percentage of the offspring will be tall?
75%
100%
25%
50%
65
A force is applied to two objects of different mass. Which object will accelerate the most?
The object with a smaller mass
They will accelerate at the same rate.
The object with a larger mass
66
What element is this?
Carbon
Nitrogen
Hydrogen
Magnesium
67
Sodium Iodide is a
covalent compound
ionic compound
68
Where does fertilisation occur?
5
7
6
4
69
Number 4 is showing
ovaries
cervix
uterus
vagina
70
What is this?
A chromosome
Gamete
A nucleus
A gene
71
What must be in the test tube?
Acid + carbonate
Acid + salt
Acid + metal
Acid + base
72
How are radioisotopes produced?
using X-rays
In a test tube
In a power station
Nuclear reactor or particle accelerator
73
Compare the mass and weight of on object on the moon and earth
It's mass is less on the monn and weight remains the same
It's weight and mass is greater on the moon,
It's weight and mass is greater on earth
It's weight is less on the moon and mass remains the same
74
Hydrochloric acid + Zinc -->
Zinc chloride + hydrogen
Zinc + salt + hydrogen
Zinc chlorate + hydrogen
Zinc chloride + water
75
What term is used to describe all chemical reactions involved in maintaining an organism?
combustion
respiration
digestion
metabolism
