Convection in Real Life: A Quiz

What is convection?

• The transfer of heat through a fluid (liquid or gas) caused by molecular motion.

• The transfer of heat through a solid material.

• The process of freezing water.

• The movement of waves in the ocean.

How does convection affect weather patterns?

• It causes earthquakes.

• It does not affect weather patterns.

• It leads to the formation of clouds and storms.

• It makes the sky blue.

In cooking, how does convection work in an oven?

• It freezes the food.

• It cooks food by circulating hot air around it.

• It uses radiation to cook food.

• It uses direct contact with a heat source to cook food.

Why is convection important in the atmosphere?

• It helps to distribute heat around the Earth.

• It prevents the sun from shining.

• It causes the Earth to rotate.

• It has no significant role in the atmosphere.

What role does convection play in the human body?

• It helps to keep the body at a constant temperature.

• It has no role in the human body.

• It causes the body to lose heat rapidly.

• It helps in the digestion of food.

Which of the following is an example of convection in weather patterns?

• The formation of tornadoes.

• The occurrence of a solar eclipse.

• The movement of tectonic plates.

• The freezing of lakes in winter.

How does convection contribute to the water cycle?

• It causes precipitation to fall.

• It heats the oceans, causing evaporation.

• It has no contribution to the water cycle.

• It creates waves in the oceans.

What is a convection current?

• A stream of fast-moving particles in space.

• A flow of fluid that results from the process of convection.

• A type of electrical current used in batteries.

• A pattern of weather that repeats every year.

Why does hot air rise in the atmosphere?

• Because it is more dense than cold air.

• Because it is less dense than cold air.

• Because it contains more moisture.

• Because it moves faster than cold air.

What happens to the air as it rises due to convection?

• It gets hotter and drier.

• It expands and then cools off at higher elevation.

• It turns into liquid water.

• It moves back down immediately.