CIE IGCSE Chemistry Solved Past Paper May/June 2019 P42
CIE IGCSE Chemistry Solved Past Paper May/June 2019 P41
1a) number of protons in the nucleus of an atom
b(i) 12 12 1 2
12 14 12
(ii) isotopes
(iii) because they have the same number of electrons in their outer shells
c) beryllium metal and chloride ion
d) 2,8,3
CIE IGCSE Physics Solved Past Paper May/June 2020 P41
2a) From 0 to 8 b) Force = constant*extensionConstant value = force/extension= 8/15= 0.53 N/cmci) Elastic potential energyii) Extension = force/constant= (4/0.54)+(4/0.54)= 14.8 =15 cm of extensioniii) So now extension is 6 instead of four here the increase in extension is6-4=2. 2 is half of 4 so if new extension is half of the earlier extension,New distance should also be…
CIE IGCSE Physics Solved Past Paper May/June 2020 P43
CIE IGCSE Physics Solved Past Paper May/June 2020 P43
CIE IGCSE Physics Solved Past Paper May/June 2020 P42
CIE IGCSE Physics Solved Past Paper May/June 2020 P42
CIE A Level Chemistry (9701) Solved Past Paper May/June 2019 P22
CIE A Level Chemistry Solved Past Paper May/June 2019 P22
Achieve Your Dream Grades
High school students often experience enormous societal pressure for obtaining good grades. It is because of the central role of exam grades in choice of career direction. This piece of writing
provides guidelines to students for planning and taking right actions in pursuit of their dream grades.
Static electricity in our daily life
Why do these things happen? it’s static electricity. Before understanding static electricity, it is important to understand the basics of atoms. All objects around us are made of tiny particles called atoms. Atom consists of small particles called electron, proton and neutron. Electrons are negatively charged particles, protons are positively charged particles and neutrons are neutral particles. Therefore, all physical…