Show:
Conduction
Radiation
Convection
Heat Transfer
Electric Magnetic Spectrum
100
What is conduction, and how is it transferred?
Conduction is the process that moves energy from one object to another when they are touching. It is transferred through direct contact between objects.
100
What is radiation?
Radiation is the energy that travels across distances in the form of electromagnetic waves.
100
What is convection?
Convection is the transfer of energy through flow of a gas or liquid.
100
When fuel is consumed, the most energy released is what type of energy?
When fuel is consumed, the overall energy released is heat energy.
100
What is the electromagnetic spectrum and what does it contain?
The electromagnetic spectrum is the entire range of electromagnetic energy, from radiation that has the shortest wavelengths to radiation that has the longest wavelengths. It contains radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, x-rays, and gamma rays.
200
How are conductors and insulators different? Give an example of each.
Conductors are materials that transfer heat easily. Insulators are materials that are poor conductors. Examples of conductors: metal, gold, silver, copper Examples of insulators: wood, plastic, rubber
200
What are three types of radiations?
Visible light, microwaves, infrared radiaion.
200
How is convection different from conduction?
It is different from conduction because convection is the transfer of energy through liquids and gases, while conduction transfer energy through solids.
200
What are the three main ways heat is transferred and give an example of each.
The three main ways heat is transferred are conduction, convection, and radiation. One example of radiation is energy from the Sun that reaches the Earth, another example of heat transfer is conduction, when heat is transferred through solids by direct contact, such as a bowl of hot soup touching a metal spoon, the metal spoon is a good conductor and will spread the heat from the soup evenly throughout the spoon. One more example of heat transfer is through convection, the transfer of energy through motion of a gas of liquid. For example, warm, lighter air rising and cooler, denser air sinking.
200
Name the sentence that Ms. Phan gave us that tells every part of the electromagnetic spectrum.
Raul’s Mother Is Visiting Uncle Xavier’s Garden.
300
What is not true about conduction? A) Conduction continues until the temperatures of the objects are the same. B) Conduction transfers heat through solids. C) Conduction still occurs when the objects are the same temperature. D) Conduction can occur within a single object
C) Conduction still occurs when the objects are the same temperature.
300
List five ways that you can feel radiation. Ex: Sun shining on your face. There is no answer, so you have to list 5 ways that you feel are examples of radiation.
300
What are convection currents and how do they flow? Explain the process in which convection occurs.
Convection currents are the pattern of movement that occurs when a gas or liquid rises as it becomes warmer in one area and sinks as it becomes cooler in one area, it flows in a continuous loop. As the air is heated, its molecules begin to spread apart, getting less dense and rising. As the warm air rises into the atmosphere, it begins to cool. When the air is no longer warmer and less dense that the air above it, it will stop rising. The air then begins to cool as it molecules get closer together, the cool air begins to sink when it becomes denser than the warmer air beneath it. The cool air sinks and replaces the warm, rising air.The cooler air is then warmed by conduction with the Earth's surface, rising as well.
300
How does heat transfer from different objects of different temperature?
Heat travels from warmer objects to cooler objects. The molecules of the warmer object vibrate and collide with each other. This collision transfers energy from the warmer object’s molecules to the cooler object’s molecules. Heat stops transferring when both objects are the same temperature
300
How can you tell which form of electromagnetic energy has the most energy? The least energy?
The electromagnetic energy with the most energy has shorter wavelength, while the energy with less energy has longer waves.
400
What is an example of conduction occurring in a single object? A) A stove heats a pan. B) The fireplace warms your hand. C) The fish is put inside a tank with the bag still on, so the temperatures can balance. D) You put a metal spoon in a cup of hot chocolate, and the heat travels from one end of the spoon to the other end.
D) You put a metal spoon in a cup of hot chocolate, and the heat travels from one end of the spoon to the other end.
400
Which of the following is not a way that you feel radiation? 1. Putting your hand in a fire 2. Putting your hands near a fire to warm your hands up 3. Lying in the sun to tan 4. Sleeping on a floor heater
Putting your hands in a fire
400
Which of the following is false? A. Convection currents flow in a continuous loop. B.Differences in density in a liquid or a gas can produce convection. C. Warm air is denser than cold air, so the warm air rises and the cool air sinks. D. In convection currents, the warm ground transfers energy to the air by convection.
C. Warm air is denser than cold air, so the warm air rises and the cool air sinks.
400
Can heat energy be transferred in different ways at the same time and explain.
Yes, heat energy can be transferred in different ways at the same time. For example, a fire burning, as the wood burns, it gives off energy in the form of radiation, heat from the fire is also transferred bu conduction, the hot coals touching the stone, warm the stone and also warm the air they are in contact with, the warm air then moves through the room, heating it through convection.
400
What are three ways people use eletromagnetic energy?
Radio waves are used to carry radio signals and television signals. Microwaves are used in microwave ovens to cook food and transmit celular phone signal. X-rays and gamma rays are are used in medical technologies. Extra: People use many kinds of devices that give off vivible light
500
Name three ways that conduction helps humans. Answers may vary.
Some examples: Heat from the stove travels to the pan to cook the food. A cup of hot chocolate transfers energy to your hands to keep you warm. The fire from a fireplace warms the air around it.
500
Which of these is not true about radiation? A. Light from a lamp is radiation B.The sun is so huge, that the Earth receives a little more radiation than it needs C. Radiation is energy that travels in the form of electromagnet waves, and can travel through empty spaces, and through objects D. The Earth is so small compared to the sun, and so far away that it receives very little radiation
D. The Earth is so small compared to the sun, and so far away that it receives very little radiation
500
How is convection an important part on Earth and in Earth's atmosphere? Explain in bullet points.
- convection currents continually warm and cool land on Earth - most of the heat in the atmosphere move by convection - convection is one several processes that redistribute energy on Earth
500
Which of the following is false? A. Energy is carried from one place to another by heat flow. B. Energy is carried from one place to another by waves, such as water, light, and sounds waves, or by moving objects. C. Heat flows in fluids by convection, the transfer of energy through direct contact of gas or liquid. D. Heat flows in solids by conduction, the transfer of energy through direct contact. E. Heat is transferred between objects by radiation (through space)
C. Heat flows in fluids by convection, the transfer of energy through direct contact of gas or liquid.
500
Name the types of waves from shortest to longest, and then longest to shortest.
Gamma rays, x-rays, ultraviolent, visible light, infrared, microwaves, radio waves. Radio waves, microwaves, infrared, visible light, ultraviolent, x-rays, gamma rays.