Physical Sciences Paper 1 (English)

Feb-March 2017 — Grade 12 / Matric — Physical Sciences

Past Paper 2017 Grade 12 English Physical Sciences Hub →

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🎯 150 marks ❓ 10 questions ⏱️ 3h 📄 19 pages 📝 53 items found ∑ 2 math symbols 📚 4 topics

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Q2— Section header —

Q1— Section header —

1.10\, choose the answer and make a cross (X\ over the letter (A D\ of your ch oice in the ANSWER BOOK. EXAMPLE:

1.1According to Newton Second Law of Motion , the acceleration of a object independent of its mass. always equal to its mass. directly proportional to its mass.

1.2The diagram below shows three blocks and suspended from a ceiling. The blocks are identical stationary and have the

1.3A ball is projected vertically upwards from the ground . It returns to the ground makes an elastic collision with the ground and then bounces to a maximum height.

1.4When the velocity of a moving object is doubled the net work done by the object

1.5The net work required to stop a moving object is equal to the nertia of the object hange in k inetic energy of the objec change in momentum of the object. change in impulse of the object.

1.6A stationary observer is listening to the sound coming from a sound source. The listener hears a sound of

1.7Two charged particles are placed a distance apart. The electrostatic force exerted by one charged particle on the other is F Which ONE of the graphs below CORRECTLY represents the relationship

1.8In the circuit diagram below, t he resistance of resistor R is TWICE the resistance of resistor R The two resistors a re connected in series and identical

1.9In a DC generator the current to the external circuit is delivered through the coils battery slip rings split ring commutator

1.10In a experiment on t he photoelectric effect, the frequency of the incident light is high enough to cause the removal of electrons from the surface of the metal. The

Q2— Section header —

2.1Write down the magnitude of the net force acting on the object.

2.2Draw a labelled free body diagram for the object while it is on the inclined plane. (3\

2.3Calculate the

2.3.1Magnitude of the frictional force acting on the object while it is sliding down the inclined plane (3\

2.3.2Coefficient of kinetic friction between the object and the surfaces (3\

2.3.3Distance the object tra vels on the horizontal surface before it comes to a stop (5\ [15] 7o 2 kg Horizontal surface15

Q3— Section header —

3.1Explain the ter projectile motion (2\

3.2Is the hot air balloon free fall? Give a reason for the answer

3.3Calculate the time it takes for the ball to hit the ground after it is dropped. When t he ball lands on the ground, it is in contact with th e ground for 0,3 s and

3.4Calculate how high t he balloon from the ground when the ball reaches its maximum height after the first bounce. (6\ [1

Q4— Section header —

4.1Define the term impulse in words. (2\

4.2The diagram below shows a gun mounted on a mechanical support which is fixed to the ground. The gun is capable of firing bullets rapidly in a horizontal direction. Each bullet travels at a spee

4.2.1Magni tude of the m omentum of each bullet when it leaves the gun (3\

4.2.2The net average force that each bullet exert on the gun (5\

4.3Without any further calculation, write down the net average horizontal force that the mechanical support exerts on

5.1Define the term power in words. (2\

5.2Calculate the work done by the:

5.2.1Gravitational force on the cage (3\

5.2.2Counterweight on the cage (2\ Calculate the a verage p ower required by the motor to operate the lift

Q6— Section header —

6.1A sound source is moving at constant velocity past a stationary observer. The frequency detected as the source approaches the observer is 2 600 Hz. The frequency detected as the source moves away from the observer is 1 750 Hz.

6.1.1Name the phenomenon that describes the apparent change in frequency detected by the observer (1\

6.1.2State ONE practical application of the phenomenon in QUESTION

6.1.1in the field of medicin (1\

6.1.3Calculate the speed of the moving source. (6\

6.1.4Will the observed frequency INCREASE, DECREASE or REMAIN THE SAME if the velocity of the source increased as it: (a\ (b\ Moves towards the observer Moves

Q7— Section header —

7.1

7.1.1Were electrons ADDED TO or REMOVED FROM the spher to obtain this charge? Assume that the sphere was initially neutral.

7.1.2Calculate the number of electrons added or removed from the sphere.

7.2Point charges and are arranged at the corners of a right angled triangle as sh own in the diagram below. The charges on and

7.2.3Write down an expression , in terms of r, for the horizontal component of the electrostatic force exerted on by

7.3

7.3.1Define the term electric field at a point in words. (2\

7.3.2Calculate the distance from point charge at which the magnitude of the electric field is [2

10.2State how this change will influence the speed of the photoelectrons emitted. Choose from INCREASE DECREASE or

10.3Show by means of a calculation whether he photoelect ric effect will be OBSERVED or NOT OBSERVED, if

Mathematical Content

f(x)trig

Topics Identified

MechanicsElectricityWavesThermodynamics

Mark Allocation

Total150 marks

Sections20 + 15 + 12 + 13 = 60 marks

Paper information

SubjectPhysical Sciences

Year2017

SessionFeb-March

TypePast Paper

PaperPaper 1

LanguageEnglish

Pages19

Downloads8

Examination context

Decade2010s

Years ago9y

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.

Grade 12 subject hubs

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