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
2.1 A brother and sister walk home from school. After walking 500 m eastward, the brother realises that he has left a book at school and he returns to school. His sister continues walking another 800 m to their home. She arrives home 30 minutes after leaving school. 2.1.1 Define the term average speed. (2) … Read more
Various options are provided as possible answers to the following questions. Choosethe answer and write only the letter (A–D) next to the question numbers (1.1–1.10) inthe ANSWER BOOK, for example 1.11 D. 1.1 Which ONE of the following is a vector quantity? A Force B Time C Speed D Distance (2) 1.2 Which ONE of … Read more
NATIONAL SENIOR CERTIFICATENASIONALE SENIOR SERTIFIKAATDATA FOR PHYSICAL SCIENCES GRADE 11PAPER 2 (CHEMISTRY)GEGEWENS VIR FISIESE WETENSKAPPE GRAAD 11VRAESTEL 2 (CHEMIE) TABLE 1: PHYSICAL CONSTANTS/TABEL 1: FISIESE KONSTANTES TABLE 2: FORMULAE/TABEL 2: FORMULES TABLE 3: THE PERIODIC TABLE OF ELEMENTS/TABEL 3: DIE PERIODIEKE TABEL VAN ELEMENTE
DATA FOR PHYSICAL SCIENCES GRADE 10PAPER 2 (CHEMISTRY)GEGEWENS VIR FISIESE WETENSKAPPE GRAAD 10VRAESTEL 2 (CHEMIE) TABLE 1: PHYSICAL CONSTANTS/TABEL 1: FISIESE KONSTANTES TABLE 2: FORMULAE/TABEL 2: FORMULES TABLE 3: THE PERIODIC TABLE OF ELEMENTS/TABEL 3: DIE PERIODIEKE TABEL VAN ELEMENTE
The diagram below shows how the hydrosphere is linked to the biosphere. Study thediagram and answer the questions that follow. 10.1 Differentiate between the hydrosphere and biosphere. (2) 10.2 Write down the name of process: 10.2.1 A (1) 10.2.2 B (1) 10.2.3 C (1) 10.3 Describe the energy changes during processes A and B. Write … Read more
Two test tubes, A and B, both contain a sodium salt solution. After a small amount ofbarium chloride is added, the solution in both test tubes forms a white precipitate. 9.1 Write down the type of reaction that takes place in the test tubes. (1) 9.2 A concentrated nitric acid solution is then added into … Read more
Learners investigate how the type of substance affects electrical conductivity of thesubstance. They conduct three experiments using three different substances under thesame conditions, as shown in the table below. 8.1 Define the term electrolyte. (2) 8.2 For the investigation, write down the: 8.2.1 Investigative question (2) 8.2.2 Dependent variable (1) 8.2.3 Independent variable (1) 8.2.4 … Read more
A group of learners prepare a 0,25 mol∙dm-3 solution of sodium carbonate by dissolvinga 14,2 g sample of hydrated sodium carbonate (Na2CO3∙xH2O) in 200 cm3 of water. 7.1 Explain the meaning of the term hydrated. (1) 7.2 Write down a BALANCED CHEMICAL EQUATION to show how sodium carbonate dissociates in water. (2) 7.3 Learners then … Read more
Study the diagram below showing structures of two different substances (A and B) andanswer the questions that follow. 6.1 Choose the substance (A or B) that describes the following: 6.1.1 Metallic structure (1) 6.1.2 Structure of magnesium chloride (1) 6.2 Explain how the type of bond in substance A forms. (2) 6.3 Name the type … Read more