Physical Science NCV Level 4 — Memo

November 2022 — NCV Level 4 — Physical Science

NCV Level 4 2022 NCV Engineering

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📄 15 pages 📝 66 items found ∑ 1 math symbols 📚 4 topics

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This section provides a quick preview of questions from the document. It may not display every question or the complete wording of each one. For the full content, including diagrams, tables and other information, view the original PDF above.

Q1— Section header —

1.1Velocity/ peed

1.2Alternating (current\

1.3Gear

1.4Elastic collision

1.55

Q2— Section header —

2.55

Q3— Section header —

3.1True The photoelectric effect confirms that light has a particle nature The photoelectric effect confirms the quantum theory [10]10

Q4— Section header —

4.515

Q5— Section header —

5.1.1Marking guideline: 1 mark for relationship 1 mark for constant temperature The potential difference across the ends of a conductor is directly proportional to the current in the conductor provided the

5.27

Q6— Section header —

6.1

6.2.1OPTION 1 (Take upwards as +ve\ 9,8\(1,2\ = 11,76 m OPTION 2 (Take upwards as ve\ + (9,8\(1,2\ 11,76 m

6.2.1TO

6.2.2OPTION 1 (Take upwards as +ve\ 63,7 m \ = 63,7 m OPTION 2 (Take upwards as ve\ 63,7 m \ = 63,7 m

6.2.3OPTION 1 (Take upwards as +ve\ 25,04 m OPTION 2 (Take upwards as ve\ 25,04 m Marking guideline: In options 3 and 4 the ball is assumed to fall from its maximum height reached after rebound.

6.3.1(1\

6.3.2There are two forces acting on the ball

6.4Marking guideline 1 mark for correct labels inclusive of units on both axes 1 mark for initial velocity of projection (11,76 and rebound velocity (25,04 1 mark for time at max height (1,2 s\ and time interval when ball

7.1.1Marking guideline: 1 mark for appropriate equation; 1 mark for correct substitution; 1 mark for correct answer with units and direction OPTION 1 (Take downwards as +ve\ = (0,6\ 1,6\ (0,6\(7\

7.1.1TO Q

7.1.2options 3 & 6

7.1.2OPTION 1 (Take downwards as +ve\ (0,08\ = (0,6\( 1,6\ (0,6\7\ 64,5 N = 64,5 N OPTION 2 (Take downwards as +ve\

7.2reater (1\ [7]7

Q8— Section header —

8.1Power is the rate of doing work W = gain in E = mgh = (1 000\(9,8\(30\ = 294 000 J/2,94 OPTION 2

8.1.1TO Q

8.2.2Marking guideline: 1 mark for appropriate equation; 1 mark for correct substitution; 1 mark for correct answer with units OPTION 1 700 1,

8.3OPTION 1 = mg + F = (1 000\(9,8\ + ( 1500\ = 8 000\(0 = 22,32 m -1 OPTION 2

Q9— Section header —

9.1IMA = 7 (1\

9.2.1(100\ (3\ POSITIVE MARKING FROM Q 9.2.1 TO Q 9.2.2

9.2.2AMA 6,3 = =1 890 = m(9,8\ mass = 192,857 (4\

Q10— Section header —

10.1The Doppler effect is the change The velocity of the sound source (ambulance\ is equal to the velocity of the listener (driver\ The velocity of the driver listener relative to the bus/sound source is zero.

10.4OPTION 1 340 = f (0,42\ f = 809,52 Hz = 30 m -1 = 30 m

Q11— Section header —

11.1.1Frequency/ olour of incident light

11.1.2

11.3

11.3TO Q

11.4

Q12— Section header —

12.1.1POSITIVE MARKING FROM Q

12.1.1TO Q

12.1.2

12.1.4OPTION 1 =8,5 OPTION 2

12.1.1& Q

12.1.4TO Q

12.1.5(a\

12.1.5(a\ (4\ POSITIVE MARKING FROM Q12.1.5 (a\ TO Q12.1.5 (b\ (b\ OPTION 1 E = 2 (10 + 1,5\ OPTION 2 E = 23 (8,5 + 1,5\

12.1.6ecrease 14

12.1.7OPTION 1 The circuit current is inversely proportional to the circuit resistance. The circuit resistance decreases The circuit current increases int is directly proportional to the current in the battery.

12.2OPTION 1 ave 200 = (220\ I = 10 A OPTION 2 ave

Q13— Section header —

13.1Motor (1\

13.2[6]6

Q14— Section header —

14.1(3\ POSITIVE MARKING FROM Q

14.1TO Q

14.25

Mathematical Content

f(x)

Topics Identified

MechanicsElectricityWavesThermodynamics

Mark Allocation

Sections5 + 5 + 10 + 15 + 7 + 20 + 7 + 13 + 8 + 11 + 12 + 26 + 6 + 5 = 150 marks

Paper information

TitleMemo

SubjectPhysical Science

LevelNCV Level 4

Document typeNCV Engineering

Year2022

MonthNovember

Pages15

Downloads3

Examination context

Decade2020s

Years ago4y

SeasonSpring (SH)

Start dayTuesday

Exam periodNovember 2022

Days since exam1,441

About Physical Science examination preparation

This TVET examination resource can be used as part of a structured revision programme. Past papers are most useful when learners attempt questions independently, work within a realistic time limit, and review their answers afterwards.

How to use this resource for revision

A TVET past examination paper is most useful when it is treated as an active revision exercise. Try the questions yourself before checking the corresponding memorandum. Where you make an error, identify the reason — was it a knowledge gap, a calculation mistake, an interpretation issue, or an examination technique problem?

For stronger examination practice, complete the paper without unnecessary interruptions and keep track of the questions that take the most time. Afterwards, review the memorandum and separate knowledge gaps from mistakes caused by interpretation, calculation, structure, or examination technique.

understanding question requirements

applying subject knowledge

working under time constraints

checking answers

identifying revision priorities

A practical revision approach

Start by completing the resource without looking at the memorandum. Review incorrect and incomplete answers afterwards and make a short revision list based on the areas that caused difficulty.

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File size351.5 KB

Pages15

Archived on8 September 2026

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