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.
2.3The formula used or manipulation thereof Substitution of the given data in the formula The answer with the correct SI unit 3. 4. 5. 6. 7.
Q1— Section header —
1.1Indicate whether the following statements are TRUE or FALSE . Choose the answer and write 'True' or 'F alse' next to the question number (1.1.1
1.1.5in the ANSWER BOOK.
1.1.1The amplitude of wave is also called the minimum deviation
1.1.2A wave length is measured from the peak of one wave to the peak of the adjacent wave.
1.1.3The frequency of a wave is the number of vibration in one second
1.1.4The frequency will be ffect ed as soon as a source moves while it transmits sound, the waves in front will be compressed and at the back they will be more drawn out.
1.1.5The frequency of a bass voice is about 100 Hz (5 1\ (5\
1.2The horn of a steam locomotive with a frequency of 950 Hz is sounded. The velocity of sound in air is 340 m/s.
1.2.1What is the frequency heard by a person, standing on the platform hile the train approaches him/her at a speed of 45 km/h?
1.2.2
1.5
1.5.1The velocity of a transverse wave
1.5.2
1.6Determine the longest and shortest length of an organ pipe, open at both ends, of which the frequency must be between 58,5 to 2 625 Hz. he velocity of sound in air is 350 m/s (3\
Q2— Section header —
2.1.1 The final volume 2. .2 The final temperature
2.1.3The work done
2.1.4The change of internal energy during the expansion (4 2\ (8\
2.3Make a neat label sketch and describe the function of a porous plug experiment (5\
2.4A mass of 250 g of a gas is taken through a not cycle. The maximum and minimum temperatures are respectively 320 C and 60
2.4.1The thermal efficiency of the process.
2.4.2
2.5A vacuum bottle contains 200 g of water at 70 C. f 50 g of ice is added to the water and all the ice has melted then the final temperature is 40 C. If a
Q3— Section header —
3.1Describe the term time constant of a capacitor
3.2Give a definition of the unit of electrical charge. (2\
3.3Explain why the surface charge density of a conductor is the largest where the curvature is the largest (2 3. Four point charges are placed at the angles of a square in FIGURE 1
3.5Determine the electric field strength in air midway between two point charges of +2 10 C and
3.6During an oil drop experiment Millikan has found that the distance between
3.6.1 Derive an equation (in terms of the data given above\hereby the charge on the drop may be calculated. ,2 m
3.6.2 he charge on the oil drop
3.6.3 he number of electrons that have been removed from the oil drop
3.6.4
Q4— Section header —
4.1Name THREE properties of an electron (3\
4.2Describe the term thermionic emission (4\
4.3With which instrument can the mass of the parts of a certain substance be determined (1\
4.4
4.5
4.5.1The current in the electron beam (2\
4.5.2The potential difference through which the electrons have been accelerated (3\
4.6
4.7A student is doing an experime nt on a metal. T he following information is documented by using a red light on a metal. The red light of wave length ,1 10
4.7.1The energy of a photon of this red light.
4.7.2The maximum kinetic energy of each ejected electron (2 2\ (4\
4.8