F. Long Answer Questions:
1. What are the advantages of classification of objects?
2. (a) Differentiate between transparent and translucent objects with examples.
(b) What is meant by opaqueness? Give two examples of opaque substances.
3. (a) What are miscible and immiscible substances?
(b) You are given a few objects. Find out, if they will float or sink : foam, sponge, logs of wood, a toy,
candle, oil, dried tea leaves, cotton boll soaked in water
Answers
Ans 1. Advantages of classification of objects are:
- It makes identification of objects easy.
- It helps in sorting of objects.
- It hels in locating things.
- It helps in understanding similarites and dissimilarites among objects.
- It helps to know about properties of objects easily.
Ans 2( a) Materials like air, water, and clear glass are called transparent. ... Translucent objects allow some light to travel through them. Materials like frosted glass and some plastics are called translucent. When light strikes translucent materials, only some of the light passes through them.
(b) An opaque object is something that allows no light through it. Concrete, wood, and metal are some examples of opaque materials. Some materials can be opaque to light, but not to other types of electromagnetic waves.
Ans 3.
(a) Miscible: Two liquids that combine in any ratio to form a homogeneous solution. Liquids which have little or no mutual solubility are immiscible.
(b) I don't know sorry ..
Answer:
1.=Advantages of classification of objects are:
Advantages of classification of objects are:It makes identification of objects easy.
Advantages of classification of objects are:It makes identification of objects easy.It helps in sorting of objects.
Advantages of classification of objects are:It makes identification of objects easy.It helps in sorting of objects.It hels in locating things.
Advantages of classification of objects are:It makes identification of objects easy.It helps in sorting of objects.It hels in locating things.It helps in understanding similarites and dissimilarites among objects.
Advantages of classification of objects are:It makes identification of objects easy.It helps in sorting of objects.It hels in locating things.It helps in understanding similarites and dissimilarites among objects.It helps to know about properties of objects easily.