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- 1. Multiple ChoiceHeat is the movement of ______.radiationthermal energycoldfire
- 2. Multiple ChoiceHeat from the sun travels to Earth by _____.conductionconvectioninsulationradiation
- 3. Multiple Choice
The heat from a hot burner to a pot is transferred by ______.convectioninsulationradiationconduction - 4. Multiple ChoiceThe way the heat is moving from the hot coffee is called...convectionradiationinsulationconduction
- 5. Multiple ChoiceOn a hot summer day, which shirt would you put on to make sure you stay cool while you are outside playing?A black shirt because it reflects the sun's energy.A white shirt because it reflects the sun's energy.A black shirt because it absorbs the sun's energy.A white shirt because it absorbs the sun's energy.
- 6. Multiple ChoiceWhen holding a cup of ice water, your warm hand becomes cold. How does the heat transfer?From the cold cup to your handFrom the cold cup to the warm airFrom the ice to your handFrom your warm hand to the cold cup.
- 7. Multiple ChoiceThis is a lava lamp. When the light bulb heats the wax, the wax rises. When the wax cools, it falls. This cycle of rising/falling is an example of:Conduction.Convection.Radiation.
- 8. Multiple ChoiceWarm air rises and the cool air sinks demonstrates this type of heat transfer.conductionconvectionradiationInsolation
- 9. Multiple ChoiceThe baby chickens are kept warm from the heat lamps demonstrates this type of heat transfer.conductionconvectionradiation
- 10. Multiple ChoiceHeat transfers from an area of ____temperature to an area of ___ temperature.high to lowlow to highhigh to highIt can travel high to low and low to high.
- 11. Multiple ChoiceWalking on the warm sand sand with your bare feet demonstrates this type of heat transfer.conductionconvectionradiation
- 12. Multiple ChoiceThe Gulf Stream is a current that brings warm ocean water from the south to the north. What type of heat transfer is this?conductionconvectionradiationInsolation
- 13. Multiple ChoiceIroning a shirt is an example of...condensationconductionconvectionradiation
- 14. Multiple ChoiceWarm air is __________ dense than cold air and rises creating convection currents.moreless
- 15. Multiple ChoiceTemperature measures the...Amount of particles in a substanceThe average speed of particles in a substanceThe amount of times particles collide
- 16. Multiple ChoiceWhat happens to the movement of particles as they cool down?They slow downNothingThey don't moveThey speed up
- 17. Multiple ChoiceWhich form of energy is mostly produced in this conversion?ElectricalMechanicalThermalSound
- 18. Multiple Choice
Which form of energy is least important in this appliance?
Electrical
Light
Sound
Thermal
- 19. Multiple ChoiceThe process by which energy is transferred from a warmer object to a cooler object by means of physical contactThermal EnergyConvectionRadiationConduction
- 20. Multiple ChoiceMaterials that do not transfer energy easily.InsulatorsConductorsEnergyHeat
- 21. Multiple ChoiceWhat type of device might this Sankey be about?A very efficient LED light bulbA very inefficient incandescent light bulbA coal power plantA wind turbine
- 22. Multiple ChoiceWhat might a title be for this sankey?Electrical energyEfficient light bulb25 Joules of heatSankey for a good heater.
- 23. Multiple ChoiceWhere does most of the energy go for this transformation.heatelectricallightjoules
- 24. Multiple ChoiceWhere does most of the energy go in this transformation.Electrical energyLightHeatother
- 25. Multiple ChoiceWhat is energy measured in?JoulesWattskilogramsNewtons
- 26. Multiple ChoiceThe useful output energy of a light bulb is....electricallightheatchemical
- 27. Multiple ChoiceThe efficiency of a device can be represented by a Sankey diagram. The amount of energy is represented by....the length of the arrowthe width of the arrowthe volume of the arrowthe area of the arrow
- 28. Multiple ChoicePower is measured in....WattsJoulesNewtonsmetres
- 29. Multiple Choice
Jilly and Fran are camping. They cover their bottle of milk with a wet cloth. How does the wet cloth keep the milk cool?
by conduction
by convection
by infrared radiation
by evaporation
- 30. Multiple ChoiceWhat does a Sankey diagram show?PowerCurrentEfficiency
- 31. Multiple ChoiceWhat is the definition of CONVECTIONWhen heat transfers through waves.When heat transfers from objects that are touching.a hot liquid or air that expands, becomes less dense, and rises or becomes more dense, and sinks.Heat traveling from the sun
- 32. Multiple ChoiceWhich of the following is an example of convection?A hair dryer is drying up your hair.When the AC or heater changes the temperature.When a car engine turns hot after being turned on.When you are making soup and the water is rising and lowering.
- 33. Multiple Choice
The cycle that powers the ocean currents and weather is called
conduction current
radiation
condition current
convection current
- 34. Multiple Choicefeet on hot sandconductionconvectionradiation
- 35. Multiple Choice
Efficiency is
a diagram showing energy transfers
a way of saying how much energy something wastes
the number of joules of energy an appliance uses every second
a unit for measuring power. there are 1000 watts (W) in a kilowatt (kW)
- 36. Multiple Choice
power is
a diagram showing energy transfers
a way of saying how much energy something wastes
the number of joules of energy an appliance uses every second
a unit for measuring power. there are 1000 watts (W) in a kilowatt (kW)
- 37. Multiple Choice
The unit of power is
kilowatt (kW)
Joule (J)
ampere (A)
volt (V)
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