Technical Sciences Paper 1 (English)

November 2019 — Grade 12 / Matric — Technical Sciences

Past Paper 2019 Grade 12 English

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🎯 150 marks ❓ 12 questions ⏱️ 3h 📄 3 pages 📝 52 items found 📚 2 topics

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2.1and

Q2— Section header —

Q1— Section header —

1.10\in the ANSWER BOOK, e.g. 1.11 D.

1.1Newton First Law of Motion implies that an object will continue moving at constant velocity as long as

1.2An object of mass moves to the right with a non zero acceleration under the

1.3A car experiences a constant net force of 500 N as it moves towards the west. equal to an impulse of the car. equal to 500 N. greater

1.4A ball with mass strikes a wall with speed Assum e that the collision is elastic

1.6ch te be

1.9Consider the straight current carrying conductor below. The direction of the current in the conductor is indicated by the arrow. The direc tion of the magnetic field will be

1.10Which ONE of the following is implied by Lenz s law? produced it. emf always opposes the change in flux

Q2— Section header —

2.1Draw a free body diagram of all the forces acting on the toolbox. (4\

2.2State a law of motion that can be used to explain why the tool box is not moving. (2\

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Q3— Section header —

3.1Crate and crate of different mass es

3.1.1State Newton Third Law of Motion in words. (2\

3.1.2Calculate the force exerted by crate on crate (6\

3.2Two workers , Paul and Martha, are moving two trolleys and connected by a light inextensible

3.2.1State Newton Second Law of Motion in words. (2\

3.2.2If the system accelerates at 1,09 m.s , calculate the tension in the string.

3.2.3If Paul's pulling force is now applied at an angle of 60 with the horizontal, what will happen to the frictional force experienced by trolley

3.2.4Explain your answer to QUESTION

3.2.3(3\ [18] Technical Sciences/P DBE/November18

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4.1Define the term isolated system (2\

4.2Calculate the momentum of the car just before the collision. (3\

4.3Determine the magnitude of the car s velocity after the collision.

4.4Name and state the

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4.5Without any calculation , de termine how the final momentum of the car compares with the initial momentum. Write only

4.6Explain your answer to QUESTION

4.5(2\ [15]15

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5.1Explain the concept inelastic collision. (2\

5.2Define (net\rce in terms of momentum. (2\

5.3Calculate the velocity of the container after the collision. (4\ [8 116 kg

6.1A worker drop ped a spanner from a building of a certain height. When the spanner reache a height of 17 m above the ground, the velocity was

6.1.1Define the term mechanical energy (2\ Calculate the:

6.1Mechanical energy of the spanner 17 m above the ground (4\

6.1Velocity of the spanner after it ha fallen 11 m below the 17 m height (5\

6.1Velocity with which the spanner hit the ground (4\

6.2.1 Wh ich formula can be used to calculate power when an object moves at constant velocity?

6.2.2 Calculate the power of the worker. Express the worker s power in horsepower.

7.3Give TWO examples of perfectly elastic substances (2\ .4 Define the term viscosity.

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8.4.3Explain your answer to

Q8— Section header —

8.5Give the relationsh ip between the current and the heat produced in the circuit. (2

9.1The sketch below is used to illustrate Faraday s law of electromagnetic in

9.2Calculate the magnetic flux linkage. (3\

Topics Identified

Forms of OwnershipLeadership

Mark Allocation

Total150 marks

Sections20 + 18 + 15 = 53 marks

Paper information

SubjectTechnical Sciences

Year2019

SessionNovember

TypePast Paper

PaperPaper 1

LanguageEnglish

Pages15

Downloads3

Examination context

Decade2010s

Years ago7y

SeasonSpring (SH)

Start dayTuesday

Exam periodNovember 2019

Days since exam2,545

About Technical Sciences examination preparation

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Corresponding marking memorandum

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