Technical Sciences Paper 1 (English)

November 2022 — Grade 12 / Matric — Technical Sciences

Past Paper 2022 Grade 12 English

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🎯 150 marks ❓ 12 questions ⏱️ 3h 📄 4 pages 📝 75 items found 📚 1 topics

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2.1and

Q2— Section header —

Q1— Section header —

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

1.1block with a mas s of 20 kg moves towards the east at a constant velocity across a rough horizontal surface , as shown in the diagram below.

1.2Newton s Third Law of Motion refers to action reaction pairs of forces. Which ONE of the following statements is INCORRECT for the action reaction pairs

1.3Impulse is equal to the chang e in momentum. rate of chang e in momentum.

1.4The work done to move an object over a distance by a force which is applied at 30 to the horizontal

1.5Which ONE of the following statements defines strain in a material? Strain is change in diameter and the original length. total length and the original length. change in length and the original length.

1.9Which ONE of the following combinations indicates the relationship between capacitance and electric charge? CAPACITANCE ELECTRICAL CHARGE increases decreases decreases

Q2— Section header —

2.1A 360 kg crate rests on the back of a truck with a rough surface. The mass of the truck is 4 550 kg and it to the right.

2.1.1If the crate is not secured with ropes , explain what will happen to it when the driver applies the brakes. (2\

2.1.2NAME and STATE in words Newton s law of motion used to

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2.1.3Draw a labelled free body diagram of ALL the forces acting on the crate as the driver applies the brakes. (3\

2.1.4Calculate the acceleration of the truck as the driver applies the brakes. (4\

2.1.5Calculate th e force applied by the brakes on the truck. (4\

2.2Two toy cars with frictionless rollers are tied together and pulled as shown in the diagram below.

2.2.1State Newton Second Law of Motion in words. (2\

Q3— Section header —

3.1A 160 g ball, bowled with a velocity of 40 , is struck by a cricket bat. The ball leaves the cric ket bat with a velocity of 65

3.1.1Define the term impulse (2\

3.1.2Calculate the impulse of the cricket bat on the ball. (4\

3.1.3Calculate the magnitude of the net force exerted on the ball. (3\

3.2Two blocks are sliding on a frictionless ice surface, a s shown in the diagram below.

3.2.1State the principle of conservation of linear momentum in words. (2\

3.2.2Calculate the velocity of the 1 kg block after the collision. (4\

3.2.3Determine by means of calculation if the above collision is elastic or inelastic. (5\

Q4— Section header —

4.1State the principle of conservation of mechanical energy in words (2\

4.2Determine the gravitational potential energy of the object at point (3\

4.3Calculate the mechanical energy of the object at point (4\

4.4Calculate the speed, , with which the object reaches point (4\ 0,88

4.5Define the term power (2\

4.6Calculate the magnitude of the tension, T, in the cable. (4\ [19] The diagram below shows an elevator that is moving upward with a p erson19

Q5— Section header —

5.1A load causes a stress of 5,5 10 Pa in a round concrete bar, which has a diameter of 50 cm. The concrete bar has an original length of 3,5 m. Young

5.1.1Define a deforming force (2\ Calculate the:

5.1.2Force on the bar (5\

5.1.3St in the bar (3\

5.1.4han

5.2The diagram below shows a man lifting the side of a car with a hydraulic jack. The input and output pistons have areas of 4,8 10 and 6,2

5.2.1State Pascal s law in words (2\

5.2.2If the man applies a force of 40 N to lift the side of the car, calculate the weight of the car experienced by the jack at that point. (4\ [19] Technical Sciences/P 11 DBE/ November19

Q6— Section header —

6.1Define the term refraction. (2\

6.2Write down the names of the following:

6.2.1Light ray AO (1\

6.2.2Light ray OB (1\

6.2.3Angle (1\

6.2.4Angle (1\

6.2.5Line (1\ [7]7

Q7— Section header —

7.1Name the radiation numbered:

7.1.1(1\

7.1.2(1\

7.1.3(1\

7.2State TWO uses of ultraviolet rays. (2\

7.3Define a photon of light. (2\ 7. radio station broadcast

Q8— Section header —

8.1Calculate the charge on EACH plate (5\

8.2The distance between the plates is now doubled.

8.2.1How will this change affect the magnitude of the capacitance? Refer to the RATIO in the answer. (2\

8.2.2Explain the answer to

Q8— Section header —

Q9— Section header —

9.1Total re istance of the circu (3\

9.2Po er issipated by the electric kettl (3\

9.3Heat produced in the e ectric kettle in mi utes

Q10— Section header —

10.1What is observed on the galvanometer when the magnet is moved into the coil? (1\

10.2Explain the

Q10— Section header —

10.3NAME and STATE in words the law used to explain this observation. (3 10.

Topics Identified

Leadership

Mark Allocation

Total150 marks

Sections20 + 19 + 19 + 7 + 13 + 9 + 9 = 96 marks

Paper information

SubjectTechnical Sciences

Year2022

SessionNovember

TypePast Paper

PaperPaper 1

LanguageEnglish

Pages17

Downloads4

Examination context

Decade2020s

Years ago4y

SeasonSpring (SH)

Start daySaturday

Exam periodNovember 2022

Days since exam1,448

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