Physical Sciences Paper 1 (English)

May-June 2016 — Grade 12 / Matric — Physical Sciences

Past Paper 2016 Grade 12 English Physical Sciences Hub →

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🎯 150 marks ❓ 12 questions ⏱️ 3h 📄 19 pages 📝 73 items found ∑ 2 math symbols 📚 3 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.

Q2— Section header —

Q1— Section header —

1.10\ in the ANSWER BOOK, for example

1.11E.

1.1An object of mass m at the end of a string from the ceiling of a lift cage The lift is moving up ward

1.2Two hypothetical planets X and Y have the same mass. The diameter of planet Y is twice that of planet X. he acceleration due to gravity on the surface of planet X is

1.5When t he net work done on an object is positive ( greater than zero the kinetic energy of the object is zero. kinetic energy of the object is

1.6police car with its s iren wailing is moving away from a stationary observer at constant speed. The siren emits

1.7The magnitude of the electric field at a point from a positive point charge is Which ONE of the statements

1.8ircuit shows two iden tical lamps connected to a cell of negligible internal resistance. Switch S is closed. A wire of negligible resistance,

1.9Some l earners decided to build a small electrical gene rator in the laboratory. They then

1.10In an experiment on the photoelectric effect, a scientist shines red light on a metal surface and observes that electrons are ejected from the metal surface Later the scientist shines

Q2— Section header —

2.1State Newton's FIRST law in words. (2\

2.2Write down the magnitude of the NET force acting on the 10 kg block. (1\ When a N force is applied vertically downwards the 2 kg block, the 10 kg block accelerates to the right at 1,2 m

2.3Draw a free body diagram for the 2 kg block when the 15 N force is applied to it. (3\

2.4Calculate the coefficien t of kinetic friction between the 10 kg block and the surface of the table. (7\

2.5How does the value calculated in QUESTION

2.4compare with the value of the coeffici ent of STATIC friction for the 10 kg block the table Write down

2.6If the 10 kg block had a larger surface area in contact with the surface of the table, how would this affect the coefficient of kinetic friction calculated in

Q2— Section header —

Q3— Section header —

3.1Explain what is meant by a projectile

3.2Calculate:

3.2.1The total time that ball will be in the air (4\

3.2.2The distance travelled by ball during the last second of its fall Calculate the speed with which ball was projected upwards from the roof (4\ ketch

Q4— Section header —

4.1State the principle of conservation of linear momentum in words. (2\

4.2Calculate the magnitude of the

4.2.1Velocity of the combined blocks at point (4\

2.2Net fo acting on the combined block when they move through section 11

Q5— Section header —

5.1State the principle of conservation of mechanical energy in words (2\

5.2The kinetic frictional force between the 20 block and the surface of the ramp is 30 N. Use

5.2.1Work done by the kinetic frictional force on the block

5.2.2Speed of the block at point at the bottom of the ramp

5.3A 100 kg object is pulled up the SAME RAMP by a small motor. The kinetic frictional force between the 100 kg object and

Q6— Section header —

6.1At w hich side of the diagram, or , is the hospital situated? (1\

6.2Explain the

Q6— Section header —

6.3Calc ulate the frequency of the sound of the siren heard by a person standing

6.4A nurse is ing next to the driver in the passenger seat of the ambulanc e as it approaches the hospital Calculate the

Q7— Section header —

7.1Calculate the number of electrons that were removed from Q to give it a charge of + 3 x 10 C. Assume that the sphere was neutral before being charged. (3\

7.2Draw a labelled free body diagram showing all the forces acting on sphere

7.3Calculate the magnit ude of the tension in the string. (5\

Q8— Section header —

8.1Define electric field at a point in words. (2\

8.2Draw the electric field pattern for two identical positive charge pheres placed close to each other.

8.3is placed at a distance from a in space as shown in the diagram below. The net electric field at point , which is on the same line as the two charges, is zero.

Q9— Section header —

9.1In the diagram below, three light bulbs are connected in parallel to a 12 V source of negligible internal resistance . The bulbs are ra ted at 4 W,

9.1.1alculate the resistance of the 4 W bulb. (3\

9.1.2How will the equivalent resistance of the circuit c hange if the 6 W bulb burns out? Write down nly INCREASE , DECREASE or N

9.1.3How will the power dissipated by the 10 bulb change if the 6 W bulb burns out? Write down nly INCREASE , DECREASE or NO CHANGE.

9.2A learner connects a high sistance voltmeter across a battery. The voltmeter reads 6 She then connects

9.2.1Calculate the internal resistance of the battery. (4\ The learner now build the circuit below using the same 6 V

Q10— Section header —

10.1part of a simplified DC motor is shown in the sketch below.

10.1.1In which direction to to the current flow ing through the coil

10.1.2Name the ru

Q10— Section header —

10.1.3Which component in the diagram must be replaced in order fo the device to operate as an AC generator (1\

10.2An electrical device of resistance AC generator that produces a maximum emf of 430

10.2.1State the energy conversion that takes place when the AC generator is in operation. (2\

10.2.2alculate the root mean square value of the current passing through the resistor. (5\ [10] 1610

Q11— Section header —

11.1In an experiment on the photoe lectric effect light is incident on the surface of metal and electrons are ejected.

11.1.1What does the photoelectric effect indicate about the nature of light?

11.1.2The intensity of the light is increased. Will the maximum speed of the ejected elect rons INCREASE, DECREASE REMAIN THE SAME?

11.1.3dentify t he metal used in t he experiment by means of suitable calculation (5\

11.2The simplified energy diagram showing the possible electron transitions in an atom are shown below.

Multiple Choice Options

C)Assume that the sphere was neutral before being

Mathematical Content

f(x)trig

Topics Identified

MechanicsElectricityWaves

Mark Allocation

Total150 marks

Sections20 + 16 + 12 + 17 + 10 + 12 = 87 marks

Paper information

SubjectPhysical Sciences

Year2016

SessionMay-June

TypePast Paper

PaperPaper 1

LanguageEnglish

Pages19

Downloads6

Examination context

Decade2010s

Years ago10y

Season—

Start day—

Exam period—

Days since exam—

About Physical Sciences examination preparation

Grade 12 Physical Sciences combines Physics and Chemistry. Paper 1 covers mechanics, electricity, waves, and optics, while Paper 2 focuses on chemical bonding, organic chemistry, and electrochemistry.

Every available Grade 12 Physical Sciences past paper and memorandum is collected in the Physical Sciences hub at physical-science.freemode.co.za — browse all years, sessions and languages in one place.

How to use this resource for revision

A 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.

applying scientific principles

selecting appropriate equations

interpreting scientific information

performing calculations with correct units

explaining scientific reasoning

A practical revision approach

Create a one-page formula sheet and practice deriving units from first principles. The memorandum rewards correct formula identification, proper substitution, and accurate unit handling.

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