6 TH

1. Any matter has thermal energy, because……………..

• 
  a. its molecules always move. 

• b. it has fixed shape.

• c. its molecules don't move.

• d. it has fixed volume.

2. If heat transfers to a lower temperature object, its molecules will......

• a. stop moving.

• b. move slower.

• c. move faster.

• d. not be affected.

3. Heat transfers from.............bject to............object.

• a. cooler - hotter

• b. hotter-cooler

• c. bigger-smaller

• d. smaller - bigger

4. The handle of an electric iron is made of............

• a. iron.

• b. thermal insulator material.

• c. metal.

•  d. thermal conductor material.

5. All the following are properties of heat, except……….

•  a. it is an essential component of life on Earth.

•  b. it cannot be lost but it is only transferred.

•  c. it flows from a cooler object to a hotter object.

• d. it flows from a hotter object to a cooler object.

6. If you stand on hot sand in barefeet, you will feel the hotness of the sand because…………..

• a. heat transfers from your legs to sand.

• b. heat transfers from sand to your legs.

• c. your legs are hotter than sand.

• d. your legs and sand have the same temperature.

7. If you hold an ice cube in your hand, which of the following sentences is correct?..........

• a. Your hand temperature is lower than the ice temperature.

• b. The ice temperature is higher than your hand temperature.

•  c. The ice and your hand have the same temperature.

• d. The molecules of ice will start to move faster.

1. When objects with the same temperature touch each other, heat transfer takes place.

• T

• F

2. Heat transfers from the cooler object to the hotter object.

• T

• F

3. The molecules of the hotter object move slower than that of the cooler object.

• T

• F