PHYSICS HOME WORK (RAMADHAN TASK) FOR GRADE VII
1. Explain the definition are : a. Quantity b. Unit c. Basic Quantity d. Derivative Quantity e. Measurement 2. Write down the basic quantities of its seven units and symbols in SI ! 3. Write down the derivative quantities of its ten units and symbols in SI ! 4. Why do we need to establish an international system unit ? 5. Explain the difference between the standard units and not standard units ? 6. What does it means by a. one metre b. one kilogram c. one second 7. Convert units of below ! a. 2.25 km …….. m……… cm b. 2.25 cm ……… m ………. Km c. 4.5 kg ……. gr d. 4.5 gr ……. kg e. 0.24 hour ….. minutes …. Seconds f. 0.24 seconds …… minutes ….. hour g. 0.25 m 2 ………. cm 2 h. 45600 cm 2 ……….. m 2 i. 2.45 liter …….. dm 3 j. 0.624 m 3 …….. cm 3 …….. liter