PHYSICS NOTES 2017.pdf

CONVERSIONS Example: 1 Convert the following as instructed: (i) 16.4mm to metres (ii) 20m to centimetres (iii) 0.092km to metres (iv) 250cm to metres Solution 1 × 𝑥= 20 × 100𝑐𝑚 𝑥= 2000 𝑐𝑚 Thus 20m = 2000 cm concepts  To prepare students for further studies in Physics.  To understand the applicability of Physics in other Fundamental Quantities | S.I unit | Symbol | 1. 𝐋𝐞𝐧𝐠𝐭𝐡 | Metre | M | 2. 𝐌𝐚𝐬𝐬 | Kilogrm | Kg | 3. 𝐓𝐢𝐦𝐞 | Second | S | 4. Thermodynamic Temperatur | Kelvin | K | 5. Electric current | Ampere | A | 6. Amount of a substance | Mole | Mol. | 7. Luminous Intensity | Candela | Cd (i) 16.4mm to metres km Hm Dm M dm cm mm 1 0 0 0 1m = 1000mm disciplines like security, medicine, engineering, e.t.c and improve the world’s technology. Physics is concerned with measurement of physical quantities and classifying them into groups according to their nature. To measure is to find the value of a physical quantity using a scientific instrument with a standard scale. Physical Quantities A physical quantity is a physical property that can accurately be measured. Types of Physical Quantities There are two types of Physical Quantities namely; 𝑥= 0.0164𝑚 Thus 16.4mm = 0.0164 m Km | Hm | Dm | M | dm | Cm | Mm | | | | 1 | 0 | 0 | | 1m = 100cm 20m = X 1 × 𝑥 = 20 × 100𝑐𝑚 𝑥 = 2000 𝑐𝑚 Thus 20m = 2000 cm | | | | | | 1. Mechanics: Motion and properties of matter. 2. Heat: A form of energy that causes rise in temperature. 3. Optics: Light and waves. 4. Electricity and Magnetism. 5. Modern Ph