Please select a subject first
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Write whether of the following objects are luminous or non-luminous.
| Object | Luminous/Non-luminous |
| A book | |
| A burning candle | |
| A wax cloth | |
| A pencil | |
| A pen | |
| A light bulb | |
| A tyre | |
| A torch |
Concept: undefined >> undefined
Match the following.
| Group A | Group B |
| (a) Mirror | (1) Non-luminous |
| (b) Firefly | (2) Inverted image |
| (c) Pinhole camera | (3) Reflection |
| (d) Moon | (4) Luminous |
Concept: undefined >> undefined
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How will you do this?
Determine whether a material is magnetic or non-magnetic.
Concept: undefined >> undefined
How will you do this?
Explain that a magnet has a certain magnetic field.
Concept: undefined >> undefined
How will you do this?
Find the north pole of a magnet.
Concept: undefined >> undefined
Which magnet will you use?
You are lost in a forest.
Concept: undefined >> undefined
Which magnet will you use?
A window shutter opens and shuts continuously in the wind.
Concept: undefined >> undefined
If a bar magnet is hung by a thread tied at its center, its north pole becomes steady in the direction of the ______ Pole of the earth.
Concept: undefined >> undefined
If a bar magnet is cut into equal pieces by cutting it at right angles to its axis at two places, ______ bar magnets are formed, and a total of _____ poles are formed.
Concept: undefined >> undefined
There is repulsion between the _____ poles of a magnet and attraction between its _____ poles.
Concept: undefined >> undefined
When magnetic material is taken close to a magnet, the material acquires ______.
Concept: undefined >> undefined
If a magnet attracts a piece of metal, that piece must be made of ______.
Concept: undefined >> undefined
A magnet remains steady in a ________ direction.
Concept: undefined >> undefined
Write the answer in your word.
Write the properties of a magnet.
Concept: undefined >> undefined
Write the answer in your word.
What are the practical uses of a magnet?
Concept: undefined >> undefined
Match the following:
| Group A | Group B |
| (1) Galaxy | (a) From east to west |
| (2) Comet | (b) 33 satellites |
| (3) Sun-like star | (c) Spiral |
| (4) Saturn | (d) Sirius |
| (5) Venus | (e) Halley |
Concept: undefined >> undefined
Mention the advantages of using a machine.
Concept: undefined >> undefined
Describe the pictures.
Concept: undefined >> undefined
The place where two or more bones are connected is called a ______.
Concept: undefined >> undefined
Right or wrong? If wrong, write the correct sentence.
Bones are soft.
Concept: undefined >> undefined
