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प्रश्न
When an object is heated, the molecules that make up the object
पर्याय
begin to move faster
lose energy
become heavier
become lighter
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उत्तर
Begin to move faster
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संबंधित प्रश्न
Fill in the blank
Heat is a form of _______.
Cooking utensils are made from metals due to their property of ______.
What will absorb heat?
Glass
Which of the following substances will absorb more heat energy?
The process of converting a liquid into a solid is called ________.
Why does the bottom of a lake not freeze in severe winter though the surface is all frozen?
We can absorb heat by rubbing two surfaces of some substances.
Observe the picture given in figure. Water is being boiled in a pan of wide base.
- Which position P or T will feel warmer?
- Fill up the boxes P and T to indicate the mode of flow of heat to the hand.
Assertion: Small gaps left between railway lines.
Reason: It allows for the contraction of rails during summer.
Explain the following effects of heat.
Chemical changes
