Chemistry
Grade-6
Easy
Question
When an iron rod is heated, it gets longer upon beating, this is because the particles in the iron rod:
- Change the shape
- Gets bigger
- Gets close together
- Move further apart
Hint:
Upon heating, a solid force of attraction is weakened.
The correct answer is: Gets bigger
- Strong forces of attraction in a solid holds its shape.
- When a solid is heated forces of attraction become weak.
- As forces of attraction weaken particles move away from each other.
- As particles move away from each other, it changes their shape.
Hence, when an iron rod is heated it gets longer as its particles move further apart.
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