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प्रश्न
True or false
In a physical change no net energy change is involved.
विकल्प
True
False
उत्तर
True
APPEARS IN
संबंधित प्रश्न
State whether the following is physical or chemical changes.
burning of sugar —
State whether the following is physical or chemical changes.
mixing oil with water —
Classify the following changes as physical or chemical.
Classify the Following as a Physical Or a Chemical Change.
Making of a Sugar Solution
Read the paragraph and note down the various types of changes it mentions.
It was nearing six o'clock in the evening. The sun was setting. A breeze was blowing. Leaves on the tree were shaking. Sahil was sitting in the courtyard, rolling balls of wet soil, and shaping them into various toys. Then he felt hungry and went into the house. Mother made a dough from wheat flour and fried purees. While eating hot purees, his attention was drawn outside the window. It had started raining. There was lightning, too. Sahil was enjoying his dinner in the dim light.
State what is meant by the term – interconversion of matter. Is interconversion of matter a physical change or a chemical change.
Fill in the blank with the correct word of the statement given below:
Sublimation of iodine is an example of _________ change.
Name the following.
A form of energy required for a chemical change.
Adding sugar to milk is a physical change.
Explain the characteristics of physical change with examples.
