Question 1 What are conductors? Give examples? Question 2 What are insulators? Give examples? Question 3 State few uses of conductors and insulators? Question 4 Why should we wear rubber soled shoes or rubber chappals while operating electrical appliances? Question 5 Why it is advisable to operate electric switches with dry hands? Question 6 Why do electricians … [Read more...] about Conductors and Insulators
Science
Electricity
Question 1 State few appliances used in everyday life which work with electricity? Question 2 State any two dangers of electricity if handles carelessly? Question 3 State few uses of electricity? Question 4 Name few gadgets which use electricity for their working? Question 5 Explain why we should never join the two terminals of a cell by wire only? Question 6 … [Read more...] about Electricity
Light and Shadow
Question 1 Name the most important source of light on Earth? Question 2 What are natural sources of light. Give example? Question 3 What are luminous objects. Give example? Question 4 What are non-luminous objects. Give example? Question 5 What are man-made sources of light. Give example? Question 6 What are transparent materials. Give examples? Question 7 … [Read more...] about Light and Shadow
Reflections
Question 1 What is meant by reflection of light? Question 2 Define the term incident rays and reflected ray? Question 3 What is a mirror? Question 4 State the difference between real images and virtual images? Question 5 What is a periscope? Question 6 Explain the working and construction of periscope? Question 7 List few uses of periscope? Question 8 Why … [Read more...] about Reflections
Distances
Question 1 What precautions should be taken while using a meter scale to measure the length of an object? Question 2 What is meant by standard unit of measurement? Why is it necessary to have standard units of measurement? Question 3 Name the S.I. unit of length. Write its symbol? Question 4 How many centimeters are there in a meter? Question 5 How many milimeters … [Read more...] about Distances