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1.10\ in the ANSWER BOOK , for example
1.1Two forces, and are applied on a crate lying on a frictionless, horizontal surface as shown in the diagram
1.2A person stands on a bathroom scale that is calibrated in newton, in a stationary elevator . The reading on the bathroom scale is W. The elevator now moves
1.5The graph below represents the relationship between the work done on an object and the time taken for this work to be done. The gradient of the graph represents the
1.6A line emission spectrum is formed when an excited atom mov from ... higher to lower energy level release
1.7Two charge d spheres of magnitude 2Q and Q respectively are placed a distance r apart on insulating stands he sphere
1.8he four resistors n the circuit below are i dentical. The cell emf and negligible internal resistance. The switch is initially CLOSED. Switch is now
1.9A DC current pass through a rectangular wire loop OPQR placed between two pole pieces of a magnet as shown below. Which
1.10When light o f a certain wavelength incident on a metal surface no electrons re ejected. Which ONE of the following
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2.1Two blocks of mass kg 2,5 kg respectively are connected by a light inextensible string. The string runs over a light frictionless pulley
2.1.1State Newton s THIRD law in words. (2\
2.1.2Calculate the tension in the strin (3\ The coefficient of static friction between the unknown mass M and the surface of the table is 0,2.
2.1.3Calculate the m inimum value of that will prevent the blocks from
2.1.4Calculate the magnitude of the acceleration of the 5 kg block. (5\
2.2small hypothetical planet has a mass of 6,5 x 10 kg and a rad ius of km. Calculate the gravitational force (
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4.1Calculate the speed at which the bullet leaves the rifle. (4\ The bullet strikes a stationary 5 kg wooden block fixed to a flat horizontal table. The
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5.1Calculate the average power developed by the motor bike for this motion. Another person practises on the sam motor
5.2Draw a labelled free body diagram for the motorbike rider system on the incline. (4\
5.3State the WORK ENERGY theorem in words (2\
5.4Use energy principles to calculate the speed of the motor bike at the end of the 450 m ride. [15]15
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6.1The data below was obtained during an investigatio n into the relationship between the different velocities of a moving sound source and the frequencies detected by a stationary listener for velocity he effect of wind
6.1.1rite down the dependent variable for this investigation (1\
6.1tate the Doppler effect in words. (2\
6.1s the sound source moving TOWARDS or AWAY FROM the listener? Give a reason for the answer. (2\
6.1.4Use the information the table to calculate the speed of sound during the investigation. (5\
6.2he spectral lines of a distant star are shif ted towards the longer wavelengths of light . Is the star mo ing TOWARDS or AWAY FROM the Earth (1\ [11]11
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7.1Calculate the number of electrons removed from sphere during the charging process. Now t he charged sphere is suspended from a light inextensible string.
7.2Draw a labelled free y diagram showing ALL the forces acting on sphere (3\
7.3State Coulomb s law in words. (2\
7.4Calculate the magnitude of the ension in the string [13] 1413
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8.1et electric field at point due to the two charges Elec trostatic force that a 2 x 10 C charge will experience at point The 2 x 10 C charge is replaced with a charge of
8.3Without any further calc ulation termine the magnitude of the force that the charge will experience at
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9.1State Ohm s law in words. (2\
9.2Calculate the reading on ammeter (4\
9.3device delivers power of 12 W, calculate the reading on ammeter (5\
9.4Calculate the reading on the voltmeter when switch is open. 4] A1 A2 16
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10.1A teacher demonstrat how current can be obtained using a bar magnet a coil and a galvanometer. The teacher moves the bar magnet up and dow as shown by the arrow in the diagram below.
10.1.1Briefly describe how the magnet must be moved in order to obtain a LARGE deflection on the galvanometer. (2\ The two devices , below operate on the princip le described in QUESTION
10.1.1above.
10.1.2Write down the name of the principle. (1\
10.1.3Write down the name of part in device (1\ 220 V AC voltage is supplied from a wall socket
10.2lectrical energy consumed by the kettle per second aximum eak\ current through the kettle [11]11
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11.1What is meant by the term photoelectric effect? (2\
11.2Draw a graph of E max axis\ versus axis\ ON THE ATTACHED ANSWER SHEET (3\
11.3USE THE GRAPH to determine:
11.3.1The threshold frequency of the metal in the photoelectric cell
11.3.2Planck s constant [13 TOTAL:
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