Energy Transformation Lab
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- Anna Potter
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1 Energy Transformation Lab
2 Lab Response Page You will fill in the blanks with the energy form that matches that object. Use thermal instead of heat and radiant instead of light. You may double check your energy forms by using your journal You must finish the lab today!
3 Expectations There are 15 stations You will move independently through these stations. Please wait your turn, some stations may take longer than others. Remember, if you are not on task, I may ask you to sit down and you will lose points on the lab grade.
4 Two stations On two stations, we will do these as a class. This is how we will start the lab First the microwave and then the wind turbine. You WILL NOT touch these after we have completed them!
5 Energy Transformation Lab Let s examine each station a little more closely!!
6 Grading the Lab Make sure your name is on your lab response page. You need a red pen and to trade with a neighbor. Each blank is worth 1 question. When we are finished, write how many that student missed at the top of the page. Make sure that lab page is given to Mrs. Thomas!
7 Hot plate A hot plate transforms electrical energy into heat (thermal energy). This energy is then transferred to the object on it (a beaker usually) by conduction. The energy transformation is:
8 Wind Turbine (with light bulb) Energy transformation is: Wind(mechanical) turbine spins(mechanical) electrical radiant
9 Flashlight Energy transformation is: Chemical Electrical Radiant
10 Desk Lamp Energy transformation: Electrical Radiant
11 Solar calculator A solar powered calculator uses solar cells as its power supply. That solar panel on the calculator recharges the batteries. What happened in our lab??? or Radiant Electrical
12 Lava lamp Lava lamps are made of two liquids, colored wax in colored water. The light bulb heats up and the liquids change densities as they warm up. As heated liquid cools, it falls back down. It is reheated by the bulb and the cycle continues. electrical radiant and thermal convection
13 Hair Dryer Energy Transformation is:: Electrical Mechanical Thermal
14 Fan Electricity comes to the fan and powers the motor. The motor is what turns the fan blades. The energy transformation is: Electrical mechanical mechanical (wind)
15 Microwave The energy transformation is: Electrical Radiant Thermal
16 How a microwave oven works In a microwave oven, food is cooked by exposing it to microwave radiation. The source of the radiation in a microwave oven is the magnetron tube. The microwave energy from the magnetron is transferred to the oven. A mode stirrer spreads the microwave energy throughout the oven. The microwave radiation produces heat inside the food in the oven. Heat is produced when the water molecules in the food vibrate from the microwave radiation. The movement of the molecules produce friction which causes heat. This heat cooks or warms up the food.
17 What is a glow stick made of? When you bend the plastic stick, the glass vial snaps open, and the two solutions flow together. The chemicals immediately react to one another, and the atoms begin emitting light. The particular dye used in the chemical solution gives the light a distinctive color.
18 Glow stick Energy Transformation is: Chemical Radiant
19 Potato Clock Energy Transformation is: The potato is used as the battery to make the clock run. A battery is a type of electrochemical cell that converts chemical energy into electrical energy. Chemical (Potato) Electrical
20 Clapper Toy The energy transformation is: Mechanical (you move it) Question: mechanical (sound) Why is sound energy considered mechanical energy?
21 Moving Toy Energy transformation: Mechanical chemical (battery) mechanical (it moves)
22 CD player Sound energy is mechanical energy but why? Sound is vibrating air, which means matter in motion which is mechanical energy! S Electrical mechanical mechanical(sound)
23 How it really works - CD player There is one other step in a CD player that a lot of people don t know about lasers! So the real energy transformation includes lasers. Here it is: electrical mechanical (disc spins) radiant (laser) mechanical (sound)
24 Radiometer Energy transformation: Radiant Mechanical
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