Grade 10 Physical Science 2020 Paper 1

11.1 Define the term potential difference. (2) 11.2 In the electric circuit given below, the ammeter and connecting wires have negligible resistance and the battery have no internal resistance. 11.2.1 Calculate the total resistance of the circuit. (3) 11.2.2 Calculate the amount of charge that flows through the 6 Ω in 40 seconds if the … Read more

10.1 A small, metal sphere A carrying a charge of +2 x 10-9 C is placed on aninsulated stand. 10.1.1 How does the number of electrons compare with the number of protons in sphere A? Choose from LESS THAN, GREATER THAN or EQUAL TO. (1) 1013 electrons are now added to sphere A 10.1.2 Calculate … Read more

9.1 Define a magnetic field. (3) 9.2 The diagram below shows a bar magnet. Draw the magnetic field pattern associated with the bar magnet (3) 9.3 Is it possible for a magnet to have one pole? Yes or No. (1) [6]

8.1 Electromagnetic radiation has a wave-particle duality. What does this mean? (2) 8.2 Arrange the following types of electromagnetic radiations in order of decreasing wavelength. Infrared, gamma ray, visible light, x-ray (2) 8.3 Define a photon. (2) An electromagnetic wave has a wavelength of 2,5 x 10-9 m. 8.4 Calculate the amount of energy that … Read more

7.1 The diagram below shows different points on a longitudinal wave. 7.1.1 Write down the labels for A, B and C. (3) 7.1.2 Does this type of wave require a medium to propagate? Write down: YES or NO (1) 7.2 The diagram shows TWO sound waves measured for the same time interval. 7.2.1 Which ONE … Read more

6.1 The figure below shows transverse wave motion. The period of the wave is 0,2 s. Calculate the: 6.1.1 Frequency of the wave. (3) 6.1.2 Speed of the wave if distance D equals to 3 metres. (4) Write down: 6.1.3 TWO pairs of points which are in phase. (2) 6.1.4 The amplitude of the wave … Read more

A steel ball of mass 5 kg is rolling over a frictionless surface, as shown below.When the ball reaches point A it has mechanical energy of 490 J. Point B is on the ground. 5.1 State the principle of conservation of mechanical energy in words. (2) 5.2 Use your knowledge of the principle of conservation … Read more

The velocity time graph below represents the motion of a girl riding her bicycle in aneasterly direction on a straight, level road. 4.1 Write down the: 4.1.1 Girl’s initial velocity (2) 4.1.2 Magnitude of the girl’s velocity at t = 300 s (2) 4.2 Use the information from the graph to describe the girl’s motion: … Read more

A van is travelling at a constant speed of 54 km.h-1 in a straight and level roadwhere the speed limit is 40 km.h-1. 3.1 Define the term acceleration. (2) 3.2 Convert 54 km.h-1 to m.s-1. (3) A policeman starts his car from rest just as the van passes him. The police caraccelerates uniformly at 2 … Read more