Science Revision (Chemistry- Heat And Its Effect I

Science Revision (Chemistry- Heat And Its Effect I

Revision for science chemistry, heat and its effect. Have you done your revision? ? You need to revise more.... ? You know your work well! ?

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Science Revision (Chemistry- Heat And Its Effect I
A glass flask containing coloured water is placed in a beaker of hot water. What will happen?
প্রশ্ন 1 out of 5
The liquid level will drop a little before rising again. The liquid level will rise a little. The liquid The liquid level will stay the same.
Science Revision (Chemistry- Heat And Its Effect I
Why are the telephone wires and cables raised on poles strung loosely?
প্রশ্ন 2 out of 5
To allow expansion on a hot day and contraction on a cool day. To prevent the birds from flying into the wires. To prevent the lightning from striking the wires and cables.
Science Revision (Chemistry- Heat And Its Effect I
What will happen when no gap was allowed in the railway tracks?
প্রশ্ন 3 out of 5
I am not on the train. Who cares? Nothing will happen. The tracks will be distorted due to expansion on a hot day.
Science Revision (Chemistry- Heat And Its Effect I
What is a bimetallic used for?
প্রশ্ন 4 out of 5
Dunno. Thermostat. tv. Thermostat.Alarm.
Science Revision (Chemistry- Heat And Its Effect I
Bonus question: How much does the Golden Gate Bridge expands in summer time?
প্রশ্ন 5 out of 5
0.3m 0.9m 1m
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