devozeeba

Consider the following chemical equations: 2.1 Define the term covalent bond. (2) 2.2 Write down the Lewis structure for the CH4 molecule. (2) 2.3 Consider the bonds C – H and O – H Which bond … 2.3.1 has a longer bond length? Give a reason for your answer. 2.3.2 is stronger? (1) 2.4 How … Read more

10.1 A learner sets up the circuit below to investigate the relationship between current and potential difference across the ends of a conductor. She closes the switch and records the ammeter and voltmeter readings. She repeats the experiment three times; each time she increases the number of cells in the circuit. Then she reads and … Read more

9.1 The diagram below represents a current-carrying conductor. Draw the magnetic field pattern around this conductor. 9.2 A solenoid with a radius of 5 cm and 350 turns is pulled out of a magnetic field of strength 5,20 T in 0,1 second. The solenoid is placed perpendicular to the magnetic field. 9.2.1 State Faraday’s law … Read more

Two identical point charges are placed 100 mm apart in a vacuum as shown below. The electrostatic force that Q1 exerts on Q2 is 5,09 N. 8.1 Draw the electric field pattern between the two charges. (3) 8.2 Calculate the magnitude of each charge. (4) 8.3 Calculate the net electric field at point P, as … Read more

A learner is investigating a certain phenomenon of light. He viewed red light through a single slit and observed the pattern that was formed on a screen. He repeated the experiment using blue light and observed the pattern on a screen again. 7.1 Name the phenomenon that the leaner is investigating. (1) 7.2 Draw separate … Read more