# Physical Sciences Grade 10 P1 March Test 2018 Paper & Memo

> Grade 10 Physical Sciences Paper 1 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-p1-march-qp-memo-2018-gr10/95903d51-7d0b-4c1a-b3c7-a33ae1cdf9ef
- Updated: 2026-09-27
- Subject: Physical Sciences
- Grade: Grade 10
- Document type: Question paper and memo
- Year: 2018
- Exam period: March Test
- Paper: 1
- 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/P1 Downloaded from hlayiso.com.: 2018 Common Test

NSC - Grade 10

INSTRUCTIONS AND INFORMATION

1 Write your name and class (for example 10A) in the appropriate spaces on the
ANSWER BOOK.

2: Answer ALL the questions in the ANSWER BOOK.

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

4. Leave ONE line between two subquestions, for example between QUESTION 2.1
and QUESTION 2.2.

5. You may use a non-programmable calculator.

6. You are advised to use the attached DATA SHEETS.

i. Show ALL formulae and substitutions in ALL calculations.

8. Round off your final answers to a minimum of TWO decimal places.

9 Write neatly and legibly.

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Physical Sciences/P1 Downloaded from hlayiso.cam 2018 Common Test

NSC — Grade 10

QUESTION 1: MULTIPLE-CHOICE QUESTIONS

Four possible options are provided as answers to the following questions.

Each question has only ONE correct answer. Choose the answer and write only
the letter (A — D) next to the question number (1.1 — 1.4 ) in the ANSWER BOOK,
for example 1.5 C.

1.1. The time taken for one complete wave cycle to pass a point is known as ...

A frequency.

B amplitude

ie} wavelength.

D period. (2)

1.2. The diagram below represents a longitudinal wave.

ec

Ww x yi Z
e °

Which one of the following labels correctly indicates a trough?

DOD>y
<NSsc

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Physical Sciences/P1 Downloaded from hlayiso.com.., 2018 Common Test

NSC — Grade 10

1.3. Which type of wave DOES NOT travel at 3 x 10° m.s'?

Radio

Gamma

Sound

Microwaves (2)

0VQWUY

1.4 Two sound waves, A and B, are travelling through air. Wave A has a
wavelength of 4,5 m and wave B has a wavelength of 1,5 m. If the
temperature of the air remains constant as the waves travel, then it can
be concluded that:

A The speed of A is 9 times that of B
B The speed of A is 3 times that of B
Cc The speed of A is 1/3 times that of B
D Both waves travel at the same speed. (2)
[8]
QUESTION 2

Two pulses, A and B, travelling in a medium approach each other. The resulting
amplitude when the two pulses meet at point Qis +2 cm. Pulse B has an amplitude
of +5 cm, and is moving eastwards. The pulse length of both pulse A and B is 4 cm.

2.1 Define a pulse. (2)
2.2 What type of interference takes place at point Q? Give a reason. (2)
2.3. Determine the amplitude of pulse A. (2)

2.4 — Will the pulse length of the resulting pulse at point Q be EQUAL TO;
LESS THAN or GREATER THAN 4 cm? Give a reason. (2)

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Downloaded from hlayiso.com,., 2018 Common Test

NSC — Grade 10

Physical Sciences/P1

QUESTION 3

Study the following wave form diagram for a wave travelling at 340 m.s” in air.

3.1. How long does it take for the wave to make one complete wave cycle? (1)
3.2. Define wavelength. (2)
3.3. How many wave cycles are there between points X and Y? (1)
3.4 Calculate the frequency of this wave. (2)
3.5 Calculate the wavelength of this wave? (3)

3.6 Copy this wave diagram in your answer book. Label this wave A.

3.6.1 On this same diagram, draw a second wave with a pitch twice that
of A and an amplitude that is half of A. Label this wave B.
Indicate the relevant times for each wave cycle. (3)

3.6.2 How does the wave length of wave B compare to that of wave A

Use LONGER THAN, EQUAL TO or SHORTER THAN. (1)
[13]

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prysical Sciencese> DOWNIoaded from hlayiSO. COMM, 218 common test

NSC - Grade 10

QUESTION 4

Bats hunt for food by sending out high frequency sound waves. The time taken for
the emitted wave to return to the bat enables the bat to determine the distance of
the food from it.

4.1 Write down one word for the phrase “reflected sound”. (1)

4.2 Asound wave emitted from a bat strikes a stationary object and returns to
the bat after 0,01 s. Calculate how far the object is from the bat. (4)

4.3. Give areason why this sound wave produced by the bat can be called
ultrasound? (1)

4.4. How does the speed of sound waves in air compare to the speed in sound
waves in water? (1)

[7]

QUESTION 5

The following are some electromagnetic waves and their corresponding wavelengths:

Electromagnetic Radiation Wavelength (m)
Wave Z 5x10"
X-rays 7 _ a 2x10
Ultraviolet 3x 107
Visible light 5x 10°
Infra-red 4x 10°
5.1. Name one source of ultraviolet radiation. (1)

5.2. Name the radiation that is used to observe objects and people in the

absence of light. (1)
5.3 Which ONE of the above waves has the highest frequency?

Use the data in the table to explain. (2)
5.4 Calculate the frequency of ultraviolet light. (3)
5.5 Define a photon. (2)
5.6 Calculate the energy of a photon of x-rays. (4)
5.7 Identify the electromagnetic radiation labelled Z 1 4

TOTAL MARKS: 50

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Physical Sciences/P 1 Downloaded from hlayiso.cam, 2018 Common Test

NSC — Grade 10

DATA FOR PHYSICAL SCIENCES GRADE 10
PAPER 1 (PHYSICS)

GEGEWENS VIR FISIESE WETENSKAPPE GRAAD 10
VRAESTEL 1 (FISIKA)

TABLE 1: PHYSICAL CONSTANTS/TABEL 1: FISIESE KONSTANTES
NAME/NAAM SYMBOL/S/MBOOL VALUE/WAARDE

Speed of light in a vacuum
Spoed van lig in 'n vacuum
Planck's constant

Planck se konstante

c 3,0x 10° m-s"

h 6,63 x 10°" Jes

TABLE 2: FORMULAE/TABEL 2: FORMULES

WAVES, SOUND AND LIGHT/GOLWE, KLANK EN LIG

v= fA orofv = vA

E=hf orlof E=hv orof E=h©
A

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3 rch 2018 Common Test Physical Sciences P1 4 March 2018 Common Test

NSC - Memorandum NSC = Memorandum
3.6 QUESTION 5
3.6.1
5.1 Visible light’ OR sun ¥ (1)
= . 5.2 Infrared ¥ (1)
2 ‘ooo
8 ame'{s) 5.3 Wave Z v Wavelength is inversely proportional to frequency. ¥ OR
S Wave Z has the shortest wavelength. ¥ (2)
a
54 vafav
3
f= 3x10" )
3x 107
M
arking Criteria for Wave B PA 68 er ¥ 8)
1 mark for amplitude of A double that of B
1 mark for two complete cycles of B
4 mark for ending at t= §x 104s OR 5.5 Apacket of energy found in (2)
1 mark for four complete cycles of B and 1 mark ending at t = 0,001 s (3)
56 E=Mv
3.6.2 Shorter than ~ (1) A
(13) = (6.63 x10) (3x 10°) v
4x10 v
QUESTION4 = 4,9725 x 1078 Jv (4)
ast ‘Echo (1) 5.7 Gamma rays ¥ (1)
[14]
4.2 = v OR =4 v
W Bis vee TOTAL MARKS: 50
d=345x5x 108 vv d=345x0,01v
= 1,725m ¥ =3,45m+ 2v
= 1,725m ¥ (4)
4.3 Bats produce high frequency sound waves Y or frequency of sound waves
range between 20 000 Hz and 100 000 Hz. ¥ (1)
4.4 Sound waves travel faster through water than air. v (1)
[7]

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