An experiment is set up, as shown below, to investigate the effect of slit width on the degree of diffraction. Distance y on the diagram represents the distance between the screen and the single slit. Distance x on the diagram represents the width of the central bright band. 7.1 Write down an investigative question for … Read more
4.1.1 Calculate the missing values A and B respectively in the table. (4) 4.1.2 Which population group has fewer females than males? (2) 4.1.3 Write the total number of white males in words. (2) 4.2.1 What is the difference in the number of seats between the left-hand side andthe right-hand side of the theatre? (4) … Read more
A compound bar graph below represents salaries of six employees in R100’s for twocompanies. Use the graph to answer the questions below. 3.1 Moesha claims that the mean salary of Company A, is R1 000 more than the meansalary of Company B. Verify, with calculations, whether her statement is valid or not. (6) 3.2 What … Read more
Experiments are performed to compare the refractive indices of different materials. In one experiment a light ray passes from air to material A and the angles of incidence and refraction are measured. The refractive index for air is 1. The graph below was drawn using the results of material A. 6.1 Define the term angle of … Read more
The acceleration due to gravity on planet X is 2,7 m∙s-2. The radius of this planet is a third (â…“) of the radius of Earth. 5.1 Explain the difference between weight and mass. (2) 5.2 Calculate the mass of planet X. (4) 5.3 Determine the factor by which the weight of an object on planet … Read more
Various options are provided as possible answers to the following questions. Eachquestion has only ONE correct answer. Choose the answer and write only theletter (A–D) next to the question number (1.1–1.10) in the ANSWER BOOK, forexample 1.11 E. 1.1 Which ONE of the bonds between the atoms below has the highest polarity? A H – … Read more
A tow truck pulls a car along a gravel road. The force applied by the engine of the tow truck is 9 000 N. The mass of the tow truck is 1 300 kg and the mass of the car is 950 kg. The vehicles are connected to each other by an inelastic tow bar … Read more
Learners investigate the relationship between net force and acceleration by pulling a trolley across a surface which is slightly inclined to compensate for friction. The trolley is connected to different masses by a string of negligible mass. The string passes over a frictionless pulley. Refer to the diagram below. Ticker-tape attached to the trolley passes … Read more
Block A, which is at rest on a horizontal rough surface, is used as an anchor to hold block B, with a mass of 56 kg, in the air at a certain height above the ground. The two blocks are connected with rope R, which makes an angle of 35° with the vertical. Block B … Read more
2.1 Use TABLE 2 below showing different options with premiums paid and benefits of aninsurance company.TABLE 2 NOTE: Benefits in the table represent money paid out in the event of death for a person 15 years and older Benefits for those younger than 15 years are 75% of the amounts indicated in the table. Premium … Read more