Physical Sciences Paper 1 (English)

Feb-March 2016 — Grade 12 / Matric — Physical Sciences

Past Paper 2016 Grade 12 English Physical Sciences Hub →

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🎯 150 marks ⏱️ 3h 📄 17 pages 📝 63 items found ∑ 2 math symbols 📚 4 topics

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Q2— Section header —

Q1— Section header —

1.10in the ANSWER BOOK, for example

1.11E.

1.1A net force which acts on a body of mass causes an acceleration If the same net force is applied to a body of mass 2

1.3he statements below describe the motion of objects. (i\ (ii\ (iii\ A feather fall from a certain height inside a vacuu

1.4irbags in m odern cars provide more safety during an accident. he statements below are made by a learner to

1.5The work done by a constant force F applied o an object to increase the object's speed from to 2 is W. The

1.6Light reaching the arth from a galaxy moving away is shifted towards greater velocities. higher frequencies. longer wavelengths. shorter wavelengths. (2\

1.7P, Q and R are three charged spheres. When P and Q are brought near each other, they experience an attractive force. When Q and R are brought near each other, they experience a repulsive force. Which ONE of the following is

1.8The minimum value of the resistance that can be obtained by co ect ing two (2\

1.9Graph represents the output emf of an generator. Graph is the output emf after a change has

1.10The possible atomic transition in an excited atom of an element are shown below. Which transition will produce the spectral line with the longest wavelength? (2\

2.1A 5 kg mass and a 20 kg mass are connected by a light inextensible string which passes over a light frictionless pulley Initially the 5 kg mass is held stationary on a horizontal surface while the 20 kg mass hangs ver

2.1.1Calculate t cceleration of the 20 kg mass (5\

2.1.2Calculate t peed of the 20 kg mass as it strikes the ground (4\

2.1.3At what mi nimum distance from the pulley should the 5 kg mass be placed initially, so that the 20 kg mass just strikes the ground? (1\

Q3— Section header —

3.1alculate the

3.1.1peed with which ball hits the surface of the water (3\

3.1.2Time it takes for ball to hit the surface of the water (3\

3.1.3nitial velocity of ball (5\ On the same set of axes, sketch a velocity v ersus time

Q4— Section header —

4.1State the principle of conservation of linear momentum in words

4.2Calculate the

4.2.1Velocity of trolley after the trolleys are released

4.2.2Magnitude of the average force exerted by the spring on trolley

4.3Is this an elastic collision? Only answer YES or NO [11] 1011

Q5— Section header —

5.1Give a reason why the coefficient of kinetic friction has no units (1\

5.2State the work energy theorem in words (2\

5.3Draw a free body diagram indi cating ALL the forces acting on the b lock while it is being pulled. (4\

5.4Show that the work done by the kinetic frictional force (W on the b can be written as W 1 176 + 0,205

5.5Calculate the magnitude of the force that h as to be applied so that the net work done by all forces on the b is zero. (4\ [15]15

Q6— Section header —

6.1Calculate the speed of th sound wave through the air. (3\

6.2A stationary sends out a s ound signal receives the same signal reflected from

6.2.1Is the mot h moving TOWARDS or AWAY FROM the bat? (1\

6.2.2alculate the magnitude of the velocity of the moth , assuming that the velocity is constant.

Q7— Section header —

7.1In the diagra the angle between each string and the vertical are the same. Give a reason why e angles are the same.

7.2State Coulomb aw i words (2\

7.3The free body diagram not drawn to scale, of the forces acting on ball is shown below. Calculate the:

7.3.1Magnitude of the t ension (T\ in the string (3\

7.3.2Distance between balls and [11] 1211

Q8— Section header —

8.1Show with the aid of a VECTOR DIAGRAM why the net electric field at point cannot be zero

8.2Calculate the net electric field at point due to the two charge d spheres and (6\ [10]10

Q9— Section header —

9.1Calculate the:

9.1.1Reading on the v oltmeter (3\

9.1.2Total c urrent supplied by the battery (4\

9.1.3Emf of the battery (5\

9.2from the circuit? Write down INCREASE, DECREASE or REMAIN THE SAME. Explain the answer. (3\ [15] 1 m 0,3 m15

10.1A simplified sketch of an AC generator is shown below. The coil of the generator rotates clockwise between the pole pieces of two magnets. At a particular instant, the current in the segment has the direction shown

10.1.1Identify the magnetic pole Only write NORTH POLE or SOUTH POLE. (1\

10.1.2e coil s rotated through 180 ill the direction of the current in segment be from to or to

10.2An electric al device is connected to a generator which produces a rms potential difference of 220 V. The maximum current passing through the device is 8 A. Calculate the:

10.2.1Resistance of the device (5\

10.2.2Energy the device consumes in two hours (5\ [12]12

Q11— Section header —

11.1Define the term work function

11.2Identify independent variable The threshold frequency for the metal used in the photocell is 5,0 1 x 10 Hz. Define the term hreshold frequency. Calculate the maximum speed of an emitted electron in

Mathematical Content

f(x)trig

Topics Identified

MechanicsElectricityWavesOptics

Mark Allocation

Total150 marks

Sections20 + 18 + 16 + 11 + 15 + 10 + 11 + 10 + 15 + 12 + 12 = 150 marks

Paper information

SubjectPhysical Sciences

Year2016

SessionFeb-March

TypePast Paper

PaperPaper 1

LanguageEnglish

Pages17

Downloads5

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.

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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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