Question 11

11.1 Consider the circuit diagram below. Switch S is OPEN. 11.1.1 Write down the reading on the following: (a) Voltmeter (V1) (1) (b) Ammeter (A1) (1) Switch S is now CLOSED. 11.1.2 Calculate the equivalent resistance of the circuit. (4) 11.1.3 Calculate the reading on voltmeter V2. (3) 11.1.4 How do the readings on ammeters … Read more

Question 8

The types of electromagnetic radiation are arranged according to frequency in the tablebelow. 8.1 How are electromagnetic waves generated? (1) 8.2 What type of electromagnetic radiation has the highest energy? (1) 8.3 Explain the answer to QUESTION 8.2. (2) 8.4 A certain type of electromagnetic radiation has a wavelength of 600 x 10-10 m. 8.4.1 … Read more

Question 7

Experiments were done to investigate the effect of temperature on the speed of sound.One person beat a drum while another person, who was standing 50 m away from thesound source, recorded the time travelled by the sound. They performed the experiment at different temperatures at different times of the day.They recorded their findings in the … Read more

Question 5

A skateboarder, starting from the top of a ramp 4,5 m above the ground, skates downthe ramp, as shown in the diagram below. The mass of the skateboarder and his boardis 65 kg. Ignore the effects of friction. 5.1 Define the term gravitational potential energy in words. (2) 5.2 Calculate the gravitational potential energy of … Read more

Question 3

The diagram below shows the positions of an athlete at different time intervals during arace. 3.1 Distinguish between motion with uniform velocity and uniformly accelerated motion. (4) 3.2 What type of motion (motion with uniform velocity or uniformly accelerated motion) is represented by the following intervals? 3.2.1 A to B (1) 3.2.2 B to C … Read more