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Examen
Exam (Elaborations) Physical Sciences Paper 2 (Chemistry) Grade 12
Anything which has mass and occupies space is called matter. It is made up of particles. In the above question, chair, air, almonds, and lemon water are matters. And love, smell, hate, thought, cold and smell of perfume are not in the category of matters because they are feeling and emotion of human beings and do not acquires any space. Q 2. Give reasons for the following observation: The smell of hot sizzling food reaches you several meters away, but to get the smell from cold food you h...
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Examen
Exam (Elaborations) Physical Sciences Paper 2 (Chemistry) Grade 12
Popular1. Data Representation 1.1. Number Systems Binary System Base 2 number system Has two possible values only (0 and 1) 0 represents OFF and 1 represents ON A point to be noted is that the most left bit is called the MSB (Most Significant Bit) Denary System Base 10 number system Has values from 0 to 9 Hexadecimal (aka Hex) Base 16 number system Has values from 0 to 9 followed by A to F A represents 10, B represents 11 and so on until 15 which is F Binary Value Hexadecimal Value Dena...
leonardkinyua
Examen
Exam (Elaborations) Physical Sciences Paper 2 (Chemistry) Grade 12
By the end of the unit, you should be able to explain characteristics and evolution of computers and appreciate impact of computers in the society. Unit Outline • Definition of computer science. • Characteristics of computer. • Classification of computer. • Role of computers in society. • History of computers. Introduction In the current generation, use of computers has become a common practice in classrooms, business, offices, entertainment, health, broadcasting, and many o...
leonardkinyua
Examen
Exam (Elaborations) Physical Sciences Paper 2 (Chemistry) Grade 12
Anything which has mass and occupies space is called matter. It is made up of particles. In the above question, chair, air, almonds, and lemon water are matters. And love, smell, hate, thought, cold and smell of perfume are not in the category of matters because they are feeling and emotion of human beings and do not acquires any space. Q 2. Give reasons for the following observation: The smell of hot sizzling food reaches you several meters away, but to get the smell from cold food you h...
leonardkinyua
Examen
Exam (Elaborations) Physical Sciences Paper 2 (Chemistry) Grade 12
2. Which of these computers can be carried everywhere? a) laptop (√) b) desktop 3. Which of these is the most powerful computer? a) Palmtop b) supercomputer (√) B. Name the types of computer that is being used in each picture. 1) Laptop 2) Tablet C. Match the columns. Use of computer Place 1) keep details of robbers c) police station 2) keep details of patients d) hospital 3) book and cancel tickets b) railway station 4) teach students a) school D. Complete this list about uses ...
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