heat curve and expansion

The weather is very hot today, so Emily wants to make some ice cubes. She pour water in the ice tray. The water will turn into SOLID when it is ...

• cooled

• heated

• melted

Ricky cooks some marshmallows on the fire. Then, his marshmallows are melted. What kind of the action that Ricky does?

• cooled

• heated

• melted

What happens when water is boiled?

• it will be an ice

• it will change into a gas

• it will be a liquid

Look at the picture below. Decreasing the temperature of something is called ...

• heating

• melting

• cooling

Billy has an ice cream with him outside during the day. When the ice cream is heated form the warm temperature, it melts. This changes the ice cream from a solid, into a.....

• liquid

• gas

• solid

In which one of the following, all type of thermal expansion can occur?

• Solid

• Liquid

• Gas

• All of the above

In which one of the following, only volume expansions can occur?

• Solid

• Liquid

• Gas

• Both b and c

In which one of the following state, the particles are tightly packed

• Solid

• Liquids

• Gases

• All of the above

What is the value of coefficient of area expansion for a sphere? Assume coefficient of linear expansion is α.

• 2α

• α

• 3α

• α/2

Ice is left out on the counter

• melting

• evaporation

• condensation

• sublimation