
POST TEST- TRANSFORMATION OF ENERGY
Quiz by Cherwin Sandow
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10 questions
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- Q1Which situation shows electrical to light energy transformation?Turning on lampshadesReheating food using a gas stoveLighting a matchstick.Switching on an aircon60s
- Q2Which of the following appliances show the transformation of heat energy to light energy?televisionflat ironmicrowave ovengas stove60s
- Q3Which best describes the energy transformation in a light bulb?Electrical energy has transformed into light and heat energy.Mechanical energy has transformed into electrical energyElectrical energy has transformed into heat and sound energy.Light energy has transformed into electrical energy60s
- Q4A student is using a cellphone to communicate with her friend. Which of the following energy transformations happen during their conversation?light to soundelectrical to soundsound to lightheat to sound60s
- Q5Electrical energy is transformed into other forms when appliances are used which could result to high electric bill. As a grade 6 pupil, how can you help conserve electrical energy?Turn on the TV while using the laptopTurn off the appliances when they are not in useIron clothes every dayUse the appliances at the same time60s
- Q6We use an electric kettle in boiling water. Which energy transformation takes place when you use an electric kettle?sound energy to light energyelectrical energy to heat energylight energy to heat energyheat energy to light energy60s
- Q7Which appliance below can transform electrical to light energy?hand mixerblenderlight bulbradio60s
- Q8Hans and his parents went out for dinner. Their house was dark and when they came home, his father switched on the light in their living room. What could Hans conclude about energy?Heat energy can change to light energyHeat energy can change to electrical energyElectrical energy can change to sound energyElectrical energy can change to light energy.60s
- Q9Which of the following objects show the electrical to sound energy transformation?oven toasterrice cookerflat irondoorbell60s
- Q10LED bulbs use less energy consumption compared to ordinary electric bulbs. Which transformation of energy happens in LED bulbs?electrical to sound energylight to sound energyelectrical to light energysound to light energy60s