# Physical Sciences Grade 10 P2 March Test 2018 Paper & Memo

> Grade 10 Physical Sciences Paper 2 question paper and memo from the March Test 2018, 10 pages. Read online or get the free PDF download.

- Page: https://www.hlayiso.com/library/phy-p2-march-qp-memo-2018-gr10/ed3641c3-8840-4695-8ef5-ac7275f571ce
- Updated: 2026-09-27
- Subject: Physical Sciences
- Grade: Grade 10
- Document type: Question paper and memo
- Year: 2018
- Exam period: March Test
- Paper: 2
- Curriculum: CAPS
- Pages: 10

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## About this document

Physical Sciences · Grade 10 · March Test · 2018. Question paper and memorandum, 10 pages. Read online or download the PDF.

Read it free online on the page above; download the PDF from there.

## Document text

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Physical Sciences/P2

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March 2018 Common Test
NSC

INSTRUCTIONS AND INFORMATION

1.

10.

This question paper consists of FOUR questions. Answer ALL the questions
in the ANSWER BOOK.

Number the answers correctly according to the numbering system used in this
question paper.

Leave ONE line between two sub questions, for example between
QUESTION 2.1 and QUESTION 2.2,

You may use a non-programmable calculator.

You may use appropriate mathematical instruments.

YOU ARE ADVISED TO USE THE ATTACHED DATA SHEET.

Show ALL formulae and substitutions in ALL calculations.

Round off your FINAL numerical answers to a minimum to TWO decimal places.
Give brief motivations, discussions, et cetera where required

Write neatly and legibly

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Physical Sciences/P2 March 2018 Common Test

NSC

QUESTION 1: MULTIPLE- CHOICE

Four options are provided as possible answers to the following questions.
Each question has only ONE correct answer. Write down only the letter (A — D)
next to the question number (1.1 — 1.3) in the answer book, for example 1.5 A.

1.1. Which of the following CANNOT be classified as an element?

A. Ch

B. H20

Cc. S

D Cc (2)

1.2 | The measureable tendency of an atom in a molecule attract bonding electrons
is called a/an...

A. Atomic radii

B. Electron affinity

G. Electronegativity

D lonisation (2)

1.3 What is a specific name given to a substance that has gained electrons?

lon

Atom

Cation

Anion (2)

GOV>Y

1.4 Which of the following equations represents the first ionization of potassium?

A. K(s) + energy — K*(g) +e

B Kg) +e ~> K"(g) + energy

on K(g) + energy > K*(g) +e

D K(s) + energy — K*(s) +e (2)

[8]

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Physical Sciences/P2 March 2018 Common Test

NSC

QUESTION 2

2.1. Classify each of the following substances as either a PURE SUBSTANCE

or a MIXTURE
2.11 Steel (1)
2.1.2 Iron (1)

2.2. Agraph below shows the heating curve of a pure substance under standard

pressure.
80 - - / a
oO oo | °B / | 4
‘= 40}— LAL |
I
= 20 °
i)
5 yal if
a 0 | |
5 5 | 10 15 Y20 | 25 | 30 | 35 | 40 45]
20 Time in mins}
-40
2.2.1 Define boiling point. (2)
2.2.2 What is the melting point of this substance? (1)
2.2.3 In which phase is this substance at point A? Give a reason. (2)
2.2.4 Describe the arrangement of particles at time 5 minutes? (2)

2.2.5 Between 25 and 35 minutes, the graph shows no change in
temperature. Explain this observation. (2)

2.2.6 What is the phase of this substance at B? (1)

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Physical Sciences/P2 March 2018 Common Test

NSC

2.3. A learner adds 10 mL of ethanol to a measuring cylinder containing 40 mL

of water.
10 mL ethanol yy

40 mL
water
She then stirs the mixture with a glass rod.
2.3.1 Is the mixture homogeneous or heterogeneous? Give a reason. (2)

2.3.2 The learner notices that the final volume of the liquid in the measuring
cylinder is a little less than 50 mL. Explain why this is so.
(NO evaporation took place). (2)

The learner now wishes to separate this mixture in the laboratory.

2.3.3 What physical property of the two liquids would she consider when
trying to separate the liquids in the mixture? (1)

2.3.4 Name the separation technique most suitable to separate these

two liquids. (1)
2.3.5 What is meant by condensation? (1)
[19]

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Physical Sciences/P2

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NSC

QUESTION 3

The following table shows the percentage abundance of two isotopes of chlorine.

3.1

3.2

3.3

3.4

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ISOTOPE | % ABUNDANCE
Cy 75.77
7 Ce 24.23

What are isotopes?

How many neutrons are present in an atom of *Cyr?

The average relative atomic mass of chlorine is 35.50 g.mol™. If the atomic
mass number of *°Cl is 34.969 g.mol", calculate atomic mass number of *°Cl.

The periodic table is a systematic arrangement of elements based on their
physical and chemical properties. Element X is found in group 2 and period 3
of the periodic table.

3.4.1 Identify element X by name.
3.4.2 What is the name of the group to which element X belongs?
3.4.3 Write down the electronic configuration (sp notation) of element X.

3.4.4. Element X undergoes ionisation. Write down the name of the element

that has the same electronic configuration as element X after ionisation.

March 2018 Common Test

(1)

(4)

(2)

(2)
[12]

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Physical Sciences/P2 March 2018 Common Test

NSC
QUESTION 4
4.1 Define a covalent bond. (1)
4.2 Draw the Lewis Dot structure for the CO2 molecule. (2)

4.3. Silver is a metal at room temperature

4.3.1 Explain briefly why silver is a good conductor of electricity at
room temperature. (2)

4.3.2 How will the conductivity of silver be affected when it is heated?
(Choose from: INCREASES; DECREASES or REMAINS THE SAME) (1)

“4 — Silicon is a metalloid.

4.4.1. What is a metalloid? (1)

4.4.2 How will the conductivity of silicon be affected when it is heated?
(Choose from: INCREASES; DECREASES or REMAINS THE SAME) __ (1)

4.5 Write down the name of the following compounds.

4.5.1 NH; (1)

4.5.2 MgSO, (1)

4.6 Write down the formula for aluminium nitrate. (1)
[11]

TOTAL MARKS: [50]

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Physical Sciences/P2 3 arch 2018 Common Test Physical Sciences/P2 4 March 2018 Common Test
Grade 10 - Memorandum Grade 10 - Memorandum
2.3 QUESTION 4
2.3.1. Homogeneous mixture. v (1)
4.1 Bond involving sharing of electrons between atoms to form molecules. ¥ (1)
2.3.2 The two liquids are soluble (dissolve) in each other. Alcohol goes in
the spaces between the water molecules. ¥ (2) 42
2.3.3 Boiling point (1) a he et
. . x
,O.2 C 1,020 w
2.3.4 (Fractional) distillation v (1) (2)
2.3.5 Process by which a gas or vapor changes to a liquid by cooling or 43
increase in resus p e a ” e (2) 4.3.1 Contains delocalised electrons “ which conduct the current when a ¥
pl ” [20] potential difference is applied. (2)
4.3.2 Decreases v (1)
QUESTION 3
44
i | et 4
3.1 Atoms of the same element (with the same number of protons, but having) 441 Substance:that:has: properties. of:metals.and rop-melals, a
v
different number of neutrons. (1) 4.4.2 Increases “ (1)
32 N=A-Z 45
=37-17 4.5.1. Ammonia ¥ (1)
=20v
20 a) 4.5.2. Magnesium sulphate “ (1)
33 RAM Mc) x % abundance Mo x % abundance 4.6 ALKNOs)s ¥ (1)
- 100% * 100% 11]
35.50 Mc) x 75,77% 34.969 x 34,.989% TOTAL MARKS: [50]
~ 100% * 100%
Mc, = 35.67 g.moltv (4)
3.4
3.4.1. Mg/ Magnesium ¥ (1)
3.4.2 Alkali-earth metals. (1)
3.4.3 19?2s?2p%3s?3p0 vv (2)
3.4.4 Neon v¥ (2)
[12]

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