Part 2 Use the Radiation Sensor to examine the relative magnitudes of the radiation emitted from various objects around the room.On a separate sheet of paper,make a table summarizing your observations. Make measurements that will help you to answer the questions listed below. Absorption and Transmission of Thermal Radiation 1.Place the Sensor approximately 5 cm from the black surface of the Radiation Cube and record the reading Place a piece of window glass between the Sensor and the bulb.Does window glass effectively block thermal radiation? 2.Remove the lid from the Radiation Cube (or use the Stefan-Boltzmann Lamp)and repeat the measurements of step 1,but using the bare bulb instead of the black surface.Repeat with other materials Radiation Rates from Different Surfaces Data and Calculation Power setting 5.0 Power setting 6.5 Power setting 8.0 Power setting 10.0 therm.res.】 2 therm.res. therm.res. therm.res. temperature_℃ temperature temperature_℃ temperature.℃ Surfac Sensor Surface Sensor Surface Sensor Surface Sensor 0 Reading Reading Reading Reading (mV) (m) (mV) (m) Black Black Black Black White White White White Polished Polishe Polishe Polish ed Aluminu d d Alumin m Alumin Alumin um um um Dull Dull Aluminu Dull Dull Alumin m Alumin Alumin um um um Questions(Part 1) 1.List the surfaces of the Radiation Cube in order of the amount of radiation emitted.Is the order independent of temperature? 2.It is a general rule that good absorbers of radiation are also good emitters.Are your measures consistent with this rule?Explain. Questions(Part 2) 1.Do different objects,at approximately the same temperature,emit different amounts of radiation? 2.Can you find materials in your room that block thermal radiation?Can you find materials that don't block thermal radiation?(For example,do your clothes effectively block the thermal radiation emitted from your body?) Absorption and transmission of Thermal Radiation2 Part 2 Use the Radiation Sensor to examine the relative magnitudes of the radiation emitted from various objects around the room. On a separate sheet of paper, make a table summarizing your observations. Make measurements that will help you to answer the questions listed below. Absorption and Transmission of Thermal Radiation 1. Place the Sensor approximately 5 cm from the black surface of the Radiation Cube and record the reading Place a piece of window glass between the Sensor and the bulb. Does window glass effectively block thermal radiation? 2.Remove the lid from the Radiation Cube (or use the Stefan-Boltzmann Lamp) and repeat the measurements of step 1 , but using the bare bulb instead of the black surface. Repeat with other materials. Radiation Rates from Different Surfaces Data and Calculation Power setting 5.0 Power setting 6.5 Power setting 8.0 Power setting 10.0 Questions (Part 1) 1. List the surfaces of the Radiation Cube in order of the amount of radiation emitted. Is the order independent of temperature? 2. It is a general rule that good absorbers of radiation are also good emitters. Are your measures consistent with this rule? Explain. Questions (Part 2) 1. Do different objects, at approximately the same temperature, emit different amounts of radiation? 2. Can you find materials in your room that block thermal radiation? Can you find materials that don't block thermal radiation? (For example, do your clothes effectively block the thermal radiation emitted from your body?) Absorption and transmission of Thermal Radiation therm.res.____Ω temperature___℃ therm.res.______ Ω temperature_____℃ therm.res._____Ω temperature____℃ therm.res.____Ω temperature____℃ Surfac e Sensor Reading (mV) Black White Polish ed Alumin um Dull Alumin um Surface Sensor Reading (mV) Black White Polished Aluminu m Dull Aluminu m Surface Sensor Reading (mV) Black White Polishe d Alumin um Dull Alumin um Surface Sensor Reading (mV) Black White Polishe d Alumin um Dull Alumin um