Beep! ACME Company The Gang’s All Hare My Biscuits are Burning That’s All Folks! That Old Wascally Wabbit
Define and give the unit for energy A 100
Energy it the ability to do work or cause change, and is measured in Joules (J) A 100
A decrease in either of these factors will decrease the kinetic energy of an object A 200
Mass or velocity A 200
What is the difference between Gravitational Potential Energy and Elastic Potential Energy. How are they similar? A 300
Both Gravitational and Elastic PE are stored energys, that is they are not currently being used. GPE is stored in the height of an object above the ground, and EPE is stored in a stretch or compression A 300
At what point(s) in its swing does the above object have its maximum potential energy? Explain. A 400
Maximum Potential energy is a point A, because that is where the pendulum is highest above the ground. A 400
What energy conversions are taking place at point D, as the ball moves toward point E? A 500
The kinetic energy of the pendulum is being converted into potential energy as the pendulum gets higher. A 500
Define chemical energy. B 100
Chemical energy is energy stored in the nucleus of an atom. B 100
How are mechanical energy and kinetic energy similar? How are they different? B 200
Both mechanical energy and kinetic energy deal with the energy of moving object, but mechanical energy also includes the potential energy of objects due to their location. B 200
A moving object usually converts mechanical energy into what form of energy? What causes the conversion? B 300
Moving objects usually convert mechanical energy into thermal energy, as a result of friction. B 300
Describe the main conversions which take place when drops a basketball. B 400
The gravitational potential energy the basketball gained when it was picked up is converted into kinetic energy as it falls. When the ball hits the ground, that kinetic energy is converted into elastic potential energy as the ball squishes, and then converted back into kinetic and gravitational PE. B 400
How are temperature and heat related? B 500
Objects will transfer thermal energy as heat, until they are the same temperature. Temperature differences drive heat transfer. B 500
Give three examples of chemical energy C 100
Matches, gasoline, food, wood, candle wax, leaves, etc C 100
What forms of energy are present in the picture above? C 200
Chemical (the food), mechanical (the spinning blade and the moving person), electrical (the cord), sound (the noise), thermal (the blender motor gets hot) C 200
What form(s) of energy could be found in the picture above? C 300
Electromagnetic/light energy (from screen), electrical energy (cord from TV and to gaming system), sound energy (volume), mechanical energy (guy pushing buttons on controller), thermal energy (TV gets hot) C 300
DAILY DOUBLE C 400 DAILY DOUBLE Place A Wager
Give 5 forms of energy present in the diagram above. C 400
Chemical (plants and fuel), Sound (noise of engine), Mechanical (moving plane), Electrical (control panel), Thermal (plane’s engine gets hot), light (sun appears to be shining) C 400
What form(s) of energy could you represent? C 500
Chemical (food we eat and how our body stores), Mechanical (whenever we move), Electrical (brain impulses), Sound (talking), Thermal (body heat) C 500
Compare and contrast thermal energy and temperature when it comes to the size of an object. D 100
Since thermal energy is the total energy of the particles in an object, size does matter for TE. The larger the object, the greater the TE. Temperature, being the average energy of the particles, is not influenced by the size of the object. D 100
No more energy can be removed from matter at what temperature? D 200
Absolute Zero (0 K, -273 °C, -460 °F) D 200
The creation of wind at the beach is best explained by which method of heat transfer? D 300
Convection best explains the creation of wind at the beach, as warm air rises and cooler air is pushed down. D 300
A thermometer, such as the one above, depends on which method of heat transfer? D 400
A thermometer uses conduction. D 400
Describe how a refrigerator can cool food down. D 500
Thermal energy from the warmer food is transferred to the cooler air in the fridge, causing the food to get cooler, and the air to get warmer. D 500
What conversion takes place when natural gas is used to heat a pot of water? E 100
The chemical energy in the natural gas is converted into thermal energy. E 100
When you rub your hands together on a cold day, what conversion is taking place? E 200
Mechanical Energy is being converted into thermal energy, through friction. E 200
The law of conservation of energy says what about energy? E 300
Energy cannot be created or destroyed. E 300
Describe 3 energy conversions which take place in the appliance above. E 400
Electrical energy is converted into electromagnetic/light, sound, and thermal energy. Light and sound energy are also converted into thermal energy. E 400
Describe conversions from 3 different sources which take place in the above diagram. E 500
Chemical energy is converted into mechanical, electrical, and thermal energy. Electrical energy is converted into light and thermal energy. Mechanical energy is converted into thermal and sound energy. Light energy is converted into chemical energy. Nuclear energy is converted into light energy. E 500
Fossil fuels, such as coal, are examples of which form of energy? F 100
Fossil fuels are examples of chemical energy F 100
When a fossil fuel is burned, what happens to its chemical energy? F 200
The chemical energy is converted into thermal energy, as well as possibly light and sound energy. F 200
What form of energy does a spinning turbine have? F 300
A spinning turbine has mechanical energy. F 300
Most power plants have the same basic procedure to “create” electricity by heating water. What are the general steps to the procedure after the water boils? F 400
Steam rises, which turns a turbine. The spinning turbine turns a generator, which “creates” the electricity. F 400
Other than burning fossil fuels like coal, name 3 other ways to create steam for a power plant. F 500
1) Burn biomass products 2) Use the nuclear energy of radioactive materials, like uranium 3) Use the thermal energy of Earth 4) Use energy from the sun, focused with mirrors F 500
The Final Jeopardy Category is: Energy Conversions and Thermal Energy Transfer Please record your wager. Click on screen to begin
List 3 energy conversions which take place in the appliance above, then explain which method of heat transfer is used by that appliance Click on screen to continue
1) Electrical energy into mechanical and light energy 2) Mechanical energy into sound energy 3) Mechanical energy into thermal energy (due to friction) A microwave uses radiation to transfer thermal energy Click on screen to continue
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