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Question 6
A light ray from a ray box is incident on a rectangular glass prism and the path of the incident ray and emergent ray was traced to obtain the diagram below. The refractive index of air and the refractive index of a glass are 1,00 and 1,52 respectively. 6.1 State Snell’s law in words. (2) … Read more
Question 5
A satellite of mass 1 000 kg is orbiting the earth at a distance of 200 km from the surface of the earth as shown on the diagram below. 5.1 State Newton’s Law of Universal Gravitation in words. (2) 5.2 Calculate the magnitude of the force that the earth exerts on the satellite tokeep it … Read more
Question 4
Two blocks of masses 1,5 kg and 3,2 kg are connected by a light inextensible string. A 24 N force is applied on a system of blocks to move them up an inclined surface which is 25 o to the horizontal at a CONSTANT VELOCITY as shown on the diagram below. The 1,5 kg box … Read more
Question 3
A 250 N force is applied on a block of mass 25 kg. The 25 kg block is connected to a 10 kg block by a light inextensible string through a frictionless pulley as shown on the diagram below. The 250 N force acts at an angle of 25 o to the horizontal so that … Read more
Question 4
4.1 Below is an extract from a map of Soweto. Study the map and answer the questions below. 4.1.1 Describe the route that you must take, with geographical directions, if you have to travel from Johannesburg CBD to Carltonville. (4) 4.1.2 Write the bar scale (line scale) as a unit scale. (3) 4.2 4.2.1 In … Read more
Question 3
3.1 Jona buys a sand pit for his 4-year-old daughter, Jaimee, and puts it in his backyard. Below is a diagram of the sandpit with dimensions. Refer to the diagram of the sandpit to answer the questions below. 3.1.1 Jona finds a space to put the sandpit, but he only considers the perimeter of the … Read more
Question 2
2.1 Water has become a critical issue in South Africa, especially in the Western Cape and the Eastern Cape, where dam levels have dropped tremendously over the past few years. Below is a table showing the major supply dams in the Western Cape. Use TABLE 1 above to answer the questions below. 2.1.1 Determine the … Read more