MOY 2024 Review 7.8BCA, 7.9ABC

Front

What is the greenhouse effect?

Back

The greenhouse effect is the process by which certain gases in Earth's atmosphere trap heat, preventing it from escaping into space, which helps to keep the planet warm.

Front

What is thermal equilibrium?

Back

Thermal equilibrium is the state in which two or more bodies in contact with each other reach the same temperature, resulting in no net heat flow between them.

Front

What happens to the kinetic energy of particles when a substance is cooled?

Back

The kinetic energy of the particles decreases.

Front

What is the difference between a planet and a dwarf planet?

Back

Planets are larger celestial bodies that orbit the Sun and have cleared their orbital paths, while dwarf planets are smaller and share their orbital paths with other objects of similar size.

Front

What is the significance of water for supporting life?

Back

Water is essential for life as it is a solvent for biochemical reactions, helps regulate temperature, and is necessary for hydration and nutrient transport.

Front

What is the role of oxygen in supporting life?

Back

Oxygen is crucial for cellular respiration, a process that allows organisms to convert food into energy.

Front

What is the impact of a runaway greenhouse effect on Earth?

Back

A runaway greenhouse effect can lead to excessively high temperatures, potentially vaporizing all water and making the planet uninhabitable.

Front

How do convection currents affect temperature distribution in fluids?

Back

Convection currents circulate fluid, distributing heat and causing temperature differences to equalize over time.

Front

What is the relationship between temperature and particle movement?

Back

As temperature increases, the kinetic energy of particles increases, causing them to move faster.

Front

What is the importance of comparing physical properties of celestial bodies?

Back

Comparing physical properties helps scientists understand the formation, evolution, and potential for life on different celestial bodies.