How Much You Know About Climate Change? Trivia Quiz

Explanation
The total energy of motion of the molecules of a substance is referred to as thermal energy. This energy is associated with the random movement of molecules and is directly related to the temperature of the substance. As the temperature increases, the thermal energy of the substance also increases. Therefore, thermal energy is the correct term to describe the total energy of motion of molecules in a substance.

Explanation
Convection is the main method of heating the troposphere. Convection occurs when warmer air rises and cooler air sinks, creating a circular motion. In the troposphere, the lower layer of the Earth's atmosphere, sunlight heats the Earth's surface, causing the air near the surface to warm up. This warm air then rises, carrying heat energy with it. As it rises, it cools and eventually sinks back down, creating a continuous cycle of heating and cooling. This process of convection is responsible for distributing heat throughout the troposphere.

Explanation
A thermometer is an instrument specifically designed to measure air temperature. It contains a temperature sensor, such as a mercury or digital sensor, which reacts to changes in temperature and provides a numerical reading. An anemometer measures wind speed, a barometer measures atmospheric pressure, and a psychrometer measures humidity levels. Therefore, the correct answer is thermometer.

Explanation
Convection is the correct answer because it refers to the transfer of energy through the movement of fluid, such as air or water. When a fluid is heated, it becomes less dense and rises, while the cooler, denser fluid sinks. This creates a circular motion that transfers heat energy. Conduction, on the other hand, is the transfer of energy through direct contact, while radiation is the transfer of energy through electromagnetic waves. Heat is a general term for thermal energy but does not specifically refer to the transfer of energy by fluid movement.

Explanation
The average energy of motion of the molecules of a substance is directly related to the temperature. Temperature is a measure of the average kinetic energy of the molecules in a substance. As the temperature increases, the molecules gain more energy and move faster. Conversely, as the temperature decreases, the molecules lose energy and move slower. Therefore, temperature is the correct answer as it represents the average energy of motion of the molecules in a substance.

Explanation
When energy is transferred from a hotter object to a cooler one, it is referred to as heat. Heat is a form of energy that flows from a region of higher temperature to a region of lower temperature. Conduction, convection, and radiation are all mechanisms through which heat can be transferred, but heat itself is the actual energy transfer.

Explanation
Conduction is the direct transfer of heat through physical contact. It occurs when two objects at different temperatures come into contact with each other and heat energy is transferred from the hotter object to the colder one. This process happens because the molecules in the hotter object have more energy and transfer some of it to the molecules in the colder object through collisions. Conduction is a common method of heat transfer in solids, where the molecules are closely packed and can easily transfer energy.

Explanation
Ultraviolet radiation is the correct answer because it is the type of energy radiated from the sun that causes sunburns, skin cancer, and eye damage. Infrared radiation is responsible for heat, visible light is the light we can see, and radio waves are a form of electromagnetic radiation with longer wavelengths. However, it is ultraviolet radiation that has the ability to penetrate the skin and cause damage, making it the main culprit behind these harmful effects.

Explanation
Infrared radiation is the type of energy radiated from the sun that can be seen by organisms such as snakes and bees, but not humans. Infrared radiation has longer wavelengths than visible light, making it invisible to the human eye. Snakes and bees, however, have specialized receptors that can detect infrared radiation, allowing them to perceive it as a form of light.

Explanation
Scattering refers to the phenomenon where light is dispersed or reflected in different directions when it interacts with particles or objects in its path. This can happen when light encounters dust, water droplets, or other small particles in the atmosphere. The scattered light can be observed in different colors and contributes to the overall brightness of the sky during the day. The other options, heat, the greenhouse effect, and radiation, do not specifically describe the phenomenon of light being reflected in all directions.