3rd & 4th Summative Test in Science 7 (Quarter 3)

1. Which of the following BEST describes conduction?

• When heat is transferred through waves of heat across a distance

• When heat is transferred through circulation of liquid or gas

• When heat transfers from objects that are touching

• When heat is transferred from cold to hot object

2. Which is TRUE about convection?

• Heat is transferred through waves of heat across a distance

• Heat is transferred through circulation of liquid or gas

• Heat transfers from objects that are touching

• Heat is transferred from cold to hot object

3. The following are examples of radiation, EXCEPT

• Warmth from the sun.

• Food heated using a microwave.

• When heat transfers from objects that are touching

• Heat from stove burner.

4. What kind of heat transfer happens when the sun is heating your body?

• Conduction   

• Convection

• Radiation

• Density

5. What heat transfer happens when you burn your hand by touching a fire?

• Conduction   

• Convection

• Radiation

• Density

6. Which of the following is needed for convection to happen?

• Fluid/gas

• Light in the form of rays

• Electromagnetic waves

• Fire

7. When air rises and the cool air sinks demonstrates this type of heat transfer.

• Conduction

• Convection

• Radiation

• Insulation

8. The baby chickens are kept warm from the heat lamps demonstrate this type of heat transfer.

• Conduction

• Convection

• Radiation

• Insulation

9. Walking on the warm sand with your bare feet demonstrates this type of heat transfer.

• Conduction

• Convection

• Radiation

• Insulation

10. Which of the following BEST explains the scenario below?

On a summer morning, John walks barefoot across his paved driveway with no problem. However, later that afternoon he steps barefoot onto the same driveway and must quickly run off because the bottoms of his feet feel like they are burning.

• As the temperature increased during the day, the particles in the pavement moved slower and the thermal energy increased.

• As the temperature increased during the day, the particles in the pavement

  moved slower and the thermal energy decreased.

• As the temperature increased during the day, the particles in the pavement

  moved faster and the thermal energy increased.

• As the temperature increased during the day, the particles in the pavement  

  moved faster and the thermal energy decreased.