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Worksheets

SS3 quizzes

Total questions: 100

Worksheet time: 4hrs 31mins

Name
Class
Date
1.
The period of a wave is
a)
the same as frequency
b)
time required to complete one cycle
c)
expressed in amperes
d)
none of the above
2.
A heater is rated as 230 V, 10 kW. The value 230 V refers to
a)
average voltage
b)
r.m.s voltage
c)
peak voltage
3.
If a sinusoidal wave has a frequency of 50 Hz with 30 A r.m.s current, which of the following equation represents the wave?
a)
42.42 sin 314.2t
b)
60 sin 25t
c)
30 sin 50t
d)
84.84 sin 25t
4.
AC stands for ___.
a)
Alternating Current
b)
Attraction Connections
5.

A radioactive source emits radiation that can pass through a sheet of paper but not through thick aluminium. What does this show about the radiation?

a)

It is alpha-particles.

b)

It is beta-particles.

c)

It is gamma-rays.

d)

It is a mixture of alpha-particles and gamma-rays

6.

Which line in the table describes the nature of an alpha-particle and a gamma-ray?

a)

A

b)

B

c)

C

d)

D

7.

How many nucleons are in a nucleus of ?

a)

19

b)

20

c)

39

d)

58

8.

Which particles are found in the nucleus of an atom?

a)

neutrons and protons only

b)

neutrons only

c)

protons and electrons only

d)

protons, electrons and neutrons

9.

A radioactive isotope has a half-life of 2 minutes. What can be deduced from this statement?

a)

After 2 minutes, half of the isotope remains.

b)

After 1 minute, half of the isotope remains.

c)

After 4 minutes, half of the isotope remains.

d)

After 4 minutes, none of the isotope remains.

10.
Which scientist developed the atomic theory?
a)
JJ Thomson
b)
Ernest Rutherford
c)
John Dalton
d)
James Chadwick
11.
He developed the planetary model of the atom.
a)
Rutherford
b)
Bohr
c)
Chadwick
d)
Dalton
12.
What did Thomson discover?
a)
electron
b)
proton
c)
neutron
d)
electron cloud
13.

Subatomic particles with a negative charge

a)

Electrons

b)

Neutrons

c)

Protons

d)

Quarks

14.
A tiny but very dense, positively charged portion of the atom that holds most of the atomic mass
a)
Electron Shells
b)
Orbitals
c)
Electron Cloud
d)
Nucleus
15.

John Dalton stated:

a)

Atoms are tiny, invisible particles.

b)

Atoms of one element are all the same.

c)

Atoms of different elements are different.

d)

Compounds form by combining atoms.

e)

All of the statements listed.

16.
How many carbon atoms are in propane
a)
1
b)
2
c)
3
d)
4
17.
If an alkane has 20 carbon atoms, how many hydrogen atoms will it have?
a)
20
b)
22
c)
40
d)
42
18.
Name this alkane
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
19.
The "ane" ending in "alkane" tells someone that they are dealing with _________-bonded carbons.
a)
single
b)
double
c)
triple
d)
quadruple
20.
The molecular formula for Heptane is
a)
C4H10
b)
C8H18
c)
C5H12
d)
C7H16
21.

C5H12 + Br2 --> C5H11Br + HBr

This reaction is called____________________.

a)

Substitution

b)

Addition

c)

Cracking

d)

Combustion

22.

Which diagram gives the skeletal formula of

2-chloropentan-3-ol ?

a)

A

b)

B

c)

C

d)

D

23.
What is the product formed at the cathode during the electrolysis of molten magnesium fluoride?
a)
magnesium
b)
hydrogen
c)
fluorine
d)
oxygen
24.
What is the gas produced at the anode during the electrolysis of dilute hydrochloric acid?
a)
water
b)
oxygen
c)
hydrogen
d)
chlorine
25.
What does the Cathode (-) do to ions?
a)
Give electrons to the Positive ions to turn them back into atoms
b)
Take electrons from the positive ions?
c)
Turn ions back into atoms by removing electrons
d)
Turn atoms into ions by adding electrons
26.
Describe reduction in terms of electrons
a)
reduction is gain of electrons
b)
reduction is loss of electrons
27.
What type of charge does a metal ion have?
a)
+
b)
-
28.
The negatively charged ions migrate toward the ________.
a)
anode
b)
cathode
29.

Which of the following corresponds to the first law of electrolysis?

a)

m = zIt

b)

n = Q/F

c)

1F = 96500C

30.

Diagram shows the application of of electrolysis in...

a)

Extraction of metals

b)

Purification of metals

c)

Electroplating of metals

d)

Wastewater treatment using Electrocoagulation

31.

  1. A steady current of 4 amperes is passed through aqueous copper (II) sulphate solution for 1800 seconds using platinum electrodes. Calculate the mass of copper deposited. (Cu = 63.5 g/mol, 1F = 96500C)

a)

  1. 2.4 g

b)

4.8 g

c)

1.7 g

d)

5.8 g

32.

If a current of 2.5 A is passed through a solution for 3 hours, calculate the charge passed.

a)

75,000 C

b)

30,000 C

c)

40,000 C

d)

27,000 C

33.

What is Faraday's first law of electrolysis?

a)

The amount of substance deposited is directly proportional to the current

b)

The amount of substance deposited is inversely proportional to the current.

c)

The amount of substance deposited is proportional to the voltage.

d)

The amount of substance deposited is constant.

34.
What element is being Oxidized?
a)
N
b)
H
c)
O
d)
S
35.
Which of the following half reactions correctly represents a reduction half reaction?
a)
Fe →Fe2+ + 2e-
b)
Pb4+ + 2e- →Pb2+
c)
2O-2 →O2 + 4e-
d)
Fe + 3e- →Fe3+
36.

Determine the oxidation number of chromate in CrO42-.

a)

+6

b)

0

c)

+2

d)

+3

37.

In the reaction Zn + 2HCl --> ZnCl2 + H2

which element, if any, is oxidized?

a)

Zinc

b)

Hydrogen

c)

Chlorine

d)

None

38.

What is the oxidation number of C in SrCO3?

a)

-4

b)

+2

c)

-6

d)

+4

39.

Consider the following reaction.

NO3− (aq) + Cu (s) → NO (g) + Cu2+ (aq)

Which statement is correct?

a)

Cu (s) is the reducing agent because it loses electrons.

b)

Cu (s) is the reducing agent because it gains electrons.

c)

Cu (s) is the oxidizing agent because it loses electrons.

d)

Cu (s) is the oxidizing agent because it gains electrons.

40.

What is the oxidation number of Mn in the following: MnO4-, MnO42- and MnO2?

a)

+4, +6, +7

b)

+7, +6, +4

c)

+2, +4, +7

d)

+5, +3, +4

41.

Which statement is NOT true when the following redox reaction is balanced?

Cu (s) + NO3- (aq) → NO (g) + Cu2+ (aq) [acidic]

a)

There are 8H+ (aq) in the reactant side.

b)

There are 2H2O (l) in the product side.

c)

There are 4H2O (l) in the product side.

d)

There are 6e- in both half-equations.

42.
Movement of anything from an area of high concentration to low concentration.
a)
Diffusion
b)
Hypotonic
c)
Isotonic
d)
Passive Transport
43.

The following features are found only in the plant cell

a)

Lysosome

b)

Cell wall

c)

Chloroplast

d)

Central vacuole

44.

The animal that is hunted and killed for food.

a)

Decomposer

b)

Predator

c)

Scavenger

d)

Prey

45.
Which term refers to the process by which individuals that are better suited to the environment survive and reproduce therefore passing down their genes to their offspring? 
a)
Evolution 
b)
Variation 
c)
Adaptation
d)
Natural Selection 
46.
The amount of energy that usually transfers from one trophic level to the next...
a)
10%
b)
20%
c)
80%
d)
50%
47.
According to the diagram, when did the common ancestor of giant pandas and spectacled bears exist? 
a)
5-10 mya
b)
10-15 mya
c)
15-20 mya
d)
20-25 mya
48.
Movement of particles from high to low concentration. 
a)
Passive Transport
b)
Active Transport
49.
Osmosis is a form of ______________. 
a)
Passive Transport
b)
Active Transport
50.
In humans, what would the blood type of a child be if she inherited type A from Dad and type B from Mom?
a)
O
b)
A
c)
B
d)
AB
51.
Any change or mistake in DNA replication can cause a ________  
a)
cancer cell 
b)
virus
c)
disease
d)
mutation
52.

Complete with a verb:


Can you _________ this cake? I think it's too sweet.

a)

Touch

b)

Sound

c)

Taste

53.

Complete with a verb:


Her voice _______ beautiful. She can be a singer!

a)

Looks

b)

Smells

c)

Sounds

54.

............................... is any receptor is any specialised tissue or cell sensitive to a specific stimulus.

a)

Conjunctiva

b)

Retina

c)

Receptors

d)

Tear ducts

55.

Arrange them in order, iris, pupil, lens, conjuctiva, cornea

a)

cornea, lens, pupil, iris, conjuctiva

b)

conjuctiva, iris, lens, cornea, pupil,

c)

conjuctiva, cornea, pupil, iris, lens

56.

A condition some parts of the objects are seen in focus and others are blurred is called

a)

Presbyopia

b)

Atigmatism

c)

Hyperopia

d)

Myopia

57.

The sense of smell.

a)

sensation

b)

olfaction

c)

gustation

d)

smell neurons

58.
Expand
a)
A
b)
B
c)
C
d)
D
59.
Expand
a)
log8 x + log8 y + log8 z
b)
5log8 x + 5log8 y + 5log8 z
c)
log8 xy + 5log8 z
d)
log8 x + log8 y + 5log8 z
60.

What is the size of the matrix below? Always do Rows x Columns.

a)

3 x 4

b)

4 x 3

61.
Multiply
a)
20     15    -10
30     -5         0
b)
-20      15     -10
30     -5          0
c)
1        8       3
11     4        5
d)
20     -15     10
-30         5        0  
62.

What is the location of 5?

a)

A12

b)

A21

c)

A25

d)

A13

63.

If A = {1, 3, 5, 7, 9} and B = {2, 3, 5, 7}, what is A ∩ B?

a)

{3, 5, 7}

b)

{2, 3, 5, 7}

c)

{2, 3, 5, 7, 9}

d)

{1, 2, 3, 5, 7, 9}

64.
If
P = {0, 1, 2, 3, 4}, Q = {4, 6, 8}
R = {6, 12, 18} Then what is (P ∩ Q) ∪ (Q ∩ R)?
a)
{4}
b)
{4, 6}
c)
{4, 6, 8}
d)
{1, 2, 3, 4, 6, 8}
65.

What does this symbol ( ∪ ) represent in set theory?

a)

Union

b)

Intersection

c)

Disjointed

d)

Subset

66.
What statement does the shaded region represent?
a)
A and B and C
b)
A or B and C
c)
B and C
d)
A or C
67.
Which of the following represents the shaded region?
a)
(A ⋃ B)'
b)
(A ∩ B)'
c)
A'
d)
B'
68.

Differentiate with respect to x...

a)

6x2 + 6x

b)

6x + 2

c)

6x + 6

d)

6x2 + 6

69.
Find the derivative of f(x) = 2x2+3.
a)
4x
b)
4x2
c)
3
d)
4x+3
70.
a)
3x2
b)
x3
c)
6x
d)
3x2 + x3
71.
Differentiate 6x⅔.
a)
4x-⅓
b)
4x-⅔
c)
6x⅓
d)
4x⅓
72.

Which one is correct?

a)

a short wonderful trip

b)

a wonderful short trip

73.

Which one is correct?

a)

black leather Italian shoes

b)

Italian black leather shoes

c)

leather black Italian shoes

d)

shoes Italian leather black

74.

Which one is correct?

a)

an expensive blue silk scarf

b)

a blue silk expensive scarf

c)

a silk blue expensive scarf

d)

an expensive silk blue scarf

75.

Which Sentence is Correct?

a)

The Soft Purple Long Blanket

b)

The Happy Small White Dog

c)

The Sad Cooking Blue Pot

d)

The Dull Wooden Old Desk

76.

Choose the word that does not have the same vowel sound as the others.

a)

does

b)

 flood

c)

world

d)

son

77.

Choose the word that has the same consonant sound as the one represented by the letter(s) underlined.

past 

a)

wrestle

b)

preached

c)

castle

d)

pasture

78.

Choose the word that has the same consonant sound as the one represented by the letter(s) underlined.

business

a)

grace

b)

rice

c)

eyes

d)

sink

79.

Choose the correct pronunciation.

Chocolate

a)

/tʃɒkleɪt/

b)

/tʃəuklɪt/

c)

/tʃɒklɪt/

d)

/tʃəukəuleɪt/

80.

Choose the option that best completes each of the following sentences.

It was an .......... moment for us to be ......... to welcome the new Vice-Chancellor.

a)

opportune/privileged

b)

opportuned/privileged

c)

opportune/opportuned

d)

opportuned/opportune

81.

Choose the option that best completes each of the following sentences.

Defects like ....... in government's development plans ........ for extra vigilance.

a)

this/calls

b)

these/calls

c)

this/call

d)

these/call

82.

Choose the option that best completes each of the following sentences.

The small girl is ........ than her elder sister.

a)

more cleverer

b)

very cleverer

c)

much cleverer

d)

much more cleverer

83.

Choose the most appropriate option opposite in meaning to the word(s) in bold.

The masses are controlled by the whims and caprices of their rulers.

a)

wish

b)

parochialism

c)

willpower

d)

level-headedness

84.

Choose the most appropriate option nearest in meaning to the  word(s) in bold.

Collosal means

a)

Greek column.

b)

gigantic.

c)

something which has list too much fluid.

d)

a calamity.

85.

Choose the most appropriate option nearest in meaning to the  word(s) in bold.

Our school perfect is too officious and we all hate him because of his behaviour.

a)

efficient

b)

active

c)

showy

d)

over-zealous

86.

What is the manner of articulation of the consonant sound 'p' in the word 'pat'?

a)

fricative

b)

plosive

c)

nasal

d)

affricate

87.

In the word 'cat', what manner of articulation does the consonant sound 't' have?

a)

Fricative

b)

Nasal

c)

Approximant

d)

Plosive

88.

Identify the manner of articulation of the consonant sound 'f' in the word 'fan'.

a)

Stop

b)

Approximant

c)

Nasal

d)

Fricative

89.

What is the manner of articulation of the consonant sound 'ch' in the word 'church'?

a)

Voiced bilabial stop

b)

Voiceless dental fricative

c)

Voiced alveolar lateral approximant

d)

Voiceless palato-alveolar affricate

90.

What manner of articulation does the consonant sound 'm' have in the word 'mat'?

a)

dental fricative

b)

velar stop

c)

bilabial nasal

d)

alveolar lateral

91.

In the word 'sing', what is the manner of articulation of the consonant sound 'n'?

a)

Approximant

b)

Fricative

c)

Nasal

d)

Plosive

92.

Identify the manner of articulation of the consonant sound 'l' in the word 'lip'.

a)

plosive

b)

nasal

c)

lateral

d)

fricative

93.

What is the manner of articulation for the sound /r/

a)

Frictionless continuant

b)

Plosive

c)

Fricative

d)

Affricate

94.

Who won the Ballon d'Or in 2022?

a)

Cristiano Ronaldo

b)

Lionel Messi

c)

Karim Benzema

d)

Kylian Mbappe

95.

How many Ballon d'Or awards has Lionel Messi won?

a)

7

b)

8

c)

5

d)

6

96.

Great Britain, France, Russia, Italy and later the USA led which coalition?

a)

Central Powers

b)

Allies

97.

When did World War 1 begin?

a)

7 September 1905

b)

28 July 1914

c)

11 May 1919

d)

28 January 1917

98.
How did WW2 end?
a)
both sides agreed to peacefully resolve their differences
b)
the US dropped two atomic bombs on Japan
c)
the Germans forced the Soviets to surrender
d)
the League of Nations declared the war illegal
99.

Who ruled as a dictator and leader of the Nazi party and wanted to build a powerful military and make his country a strong nation?

a)

Hitler

b)

Mussolini

c)

Stalin

100.

Which are the correct date for the start and end of World War 2?

a)

1914-1918

b)

1948-1949

c)

1939-1945

d)

1980-1985

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