13. Questions based on Higher Order Thinking Skills - II

If you heat a circular disk with a hole, what change do you expect in the diameter of the hole?

Remember that the effect of heating increases the separation between any pair of particles. 

  

If I heat a circular disk with a hole the diameter of the hole will increasedecrease.

 

Because thermal contractionthermal expansion takes place when we heat the disk.

 

When we heat the objects, the molecules within the object are moving at a faster rateslower rate. The object's temperature will decreaseincrease due to the increasedecrease in the movement of the molecules. The object contractsexpands because the increasedecrease in the molecule's energy reduces molecule's movementscreates more vibrations and movements, usually creating more distance between themselvescloser together.