Heat and Temperature

The following object below is a source of heat, except...

• sun

• fire

• stove

• conductors

The liquid in glass thermometer will ...... when an object gets hotter.

• blow

• expand

• shrink

• contract

Based on the picture if you left the drink in the room for 1 hour, what would happen? (room temperature = 27^oC)

1. The temperature of the drink would decrease

2. The temperature of the drink would increase

3. The ice cubes would melt

4. he temperature in the room would increase

• 1 and 2

• 2 and 3

• 3 and 4

• 1 and 3

Therefore, we can conclude that heat flows from a .... place to a ..... place until both the drink and the room reach the same temperature.

• hotter - colder

• colder - hotter

• higher - lower

• hotter - lower

Martha light a candle because her house is blackout, but after 30 minutes there is only half of candle left. It proves that the candle ..... heat and it turns from ..... to ......

• loses; solid; liquid

• gains; solid; solid

• gains; solid; liquid

• loses; solid; solid

Wood, plastic, and rubber are the examples of ....... conductors or we can call it as ......

• good ; conductors

• poor ; insulators

• good ; insulators

• poor ; conductors

Gold, copper, aluminium are the examples of ...... conductors. It .... heat quickly.

• good ; gains

• good ; absorb

• poor ; gains

• poor ; flows

Shanti will observe that if she poured hot water into the bowl, what would happen to the balloon?

• It would expand

• it would stay to normal size

• it would shrink

• the water will lose heat

Which of the following picture is true?

• 
• 
• 
• 

Based on the picture, explain why the other end of the rod made of metal became hot? Because the rod is a .... conductor, so heat can flow from heat source .....

• poor ; decrease

• poor ; quickly

• good ; increase

• good ; quickly