Question

3. Write few applications of contraction and expansion in our day to day activities ​​

Answer 1

Answer:

Thermal expansion and contraction affect the volumes of liquids that are used every day. Cars provide a good example of this. Cold gasoline in a car's gas tank expands in hot weather. ... Also, if a car engine is filled with cold liquid coolant, the coolant will warm up and expand when the car is running, and may overflow.

Answer 2

Explanation:

• Engines of motor vehicles run when gases expand.

• When making steel rims for wheels.

• When the screw-cap of a bottle cannot be opened.