physics 1st practice

When the temprature of an object increases it indicates the heat is _________.

• Removed

• Gained

• Unchangeable

• Unknown

When a metal ring and a metal sphere with

equal radius are both at room temperature,

the sphere does not pass through the ring.

After the ring is heated, the sphere can pass

through the ring. Why

• Because the 💍 ring has greater size change than the sphere

• Because the 💍 ring has equal size change with the sphere

• Because the 💍 ring has less size change than the sphere

• The sphere set on hot place alone