by yawhuatThe sensitivity of the thermometer is the ability of the thermometer to detect a small change in temperature. Here are some of the factors that influence the sensitivity of glass thermometers Thickness of the glass wall A thicker glass wall reduces the sensitivity of the thermometer Diameter of the capillary tube The smaller diameter of […]
by yawhuatSKIN ONLINE IGCSE COORDINATED SCIENCE CLASS Parts Function Epidermis Top Layer of the skin. Provides protection against bacteria and germs Dermis The layer where most receptors are found Pain Receptors To detect pain Touch Receptors To detect touching (smooth or rough) Pressure Receptors To detect pressure on the skin Hot Receptors To detect hotness Cold […]
by yawhuatAn electric field is a region of electrical charge. We have two types of charges that create an electric field. Positive charge and negative charge. Positive charge: Field lines are extended outward from the positive charge Negative charge: Field lines are extended inward into the negative charge The diagram above shows the interaction between two […]
by yawhuatRotational symmetry is the number of times a shape can fit into itself when it is rotated 360 degrees about its centre. Lets look at some of the examples to give you a better pricture.
by yawhuatSTATIC CHARGE ONLINE IGCSE PHYSICS CLASS Static charges are electrical charges comprised of Positive and Negative charges. Static charges do not move since it resides statically on the insulators. Like charges repel while unlike charges attract each other. How does static charge create? Static charges are produced when two or more objects are in contact […]
by yawhuatGRAPH SCALE A simple understanding of scale in the graph. Many of you have asked me, what it means by 1cm to 1 unit, 2cm to 1 unit, 2 cm to 3 units and etc? Take a look at the explanation below. Simple explanation for IGCSE students
by yawhuatUnlock Your English Potential! Check out my online English class and discover a world of language possibilities. As a reference, I’ve written sample essays showcasing my expertise in English language instruction. With valuable content, practical tips, and a unique teaching style, you’ll be equipped with the skills you need to excel in English. Don’t miss […]
by yawhuatCONVEX LENSES There are two types of ray diagrams discussed in IGCSE. Concave Lenses Ray Diagrams Convex Ray Diagrams Looking at the table below, we can understand that there are different applications for convex lenses. Please look at the diagram for a better understanding.
by yawhuatStudents often confuse mole and molar volume. Hope this formula can help students
by yawhuatELECTROSTATIC FORCE VS INTERMOLECULAR FORCES VS COVALENT BONDS VS IONIC BONDS Intermolecular force binds the atoms making up a molecule or a compound. These are weak forces and only exist between molecules. Intramolecular force is a stronger force and it acts to hold atoms together to form ionic or covalent bonding. There are two types […]