MEDIUM
8th ICSE
IMPORTANT
Earn 100

What do you mean by the change of state? Write the flow chart showing the complete cycle of change of state.

Important Questions on Matter

MEDIUM
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 1 - Matter>TEST YOURSELF>Q B
Differentiate between melting point and boiling point, giving atleast one example of each.
MEDIUM
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 1 - Matter>TEST YOURSELF>Q B
Describe the process of condensation and sublimation with examples.
EASY
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 1 - Matter>TEST YOURSELF>Q B
Explain the terms melting and melting point.
HARD
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 1 - Matter>TEST YOURSELF>Q B
Describe an experiment to demonstrate that a substance absorbs heat during melting without change in its temperature.
EASY
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 1 - Matter>TEST YOURSELF>Q B
Explain the terms vaporization and boiling point.
EASY
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 1 - Matter>TEST YOURSELF>Q B
A liquid can change into vapour state at a fixed temperature. Name the process involved in the above case.
EASY
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 1 - Matter>TEST YOURSELF>Q B
A liquid can change into a vapour state at all temperatures. Name the processes involved in the above case.

(Deposition/Evaporation)

MEDIUM
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 1 - Matter>TEST YOURSELF>Q B

Some ice is taken in a beaker and its temperature is recorded after each one minute. The observations are listed below :

Time (in minute) Temperature (in °C)
0 0
1 0
2 0
3 0
4 0
5 0
6 3.8
7 7.6
8 11.4

From the above observations what conclusion do you draw about the melting point of ice ?