Q3 - Science Pre Test 4
Quiz by Jeremiah Elizalde Cena
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10 questions
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- Q1LED bulbs use less energy consumption compared to ordinary electric bulbs. Which transformation of energy happens in LED bulbs?light to sound energyelectrical to sound energysound to light energyelectrical to light energy120sEditDelete
- Q2Which situation shows electrical to light energy transformation?Switching on an airconLighting a matchstick.Turning on a lamp.Reheating food using a gas stove.120sEditDelete
- Q3Which of the following appliances show the transformation of heat energy to light energy?flat irontelevisionmicrowave ovengas stove120sEditDelete
- Q4Which best describes the energy transformation in a light bulb?Electrical energy has transformed into heat and sound energy.Electrical energy has transformed into light and heat energy.Mechanical energy has transformed into electrical energy.Light energy has transformed into electrical energy.300sEditDelete
- Q5A student is using a cellphone to communicate with her friend. Which of the following energy transformations happen during their conversation?electrical to soundheat to soundsound to lightlight to sound120sEditDelete
- Q6Electrical 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?Use the appliances at the same time.Turn off the appliances when they are not in use.Iron clothes every day.Turn on the TV while using the laptop.120sEditDelete
- Q7We use an electric kettle in boiling water. Which energy transformation takes place when you use an electric kettle?electrical energy -> heat energylight energy -> heat energyheat energy -> light energysound energy -> light energy120sEditDelete
- Q8Which appliance below can transform electrical to light energy?hand mixerblenderradiolight bulb120sEditDelete
- Q9Hans 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 energy.Electrical energy can change to light energy.Heat energy can change to electrical energy.Electrical energy can change to sound energy.120sEditDelete
- Q10Which of the following objects show the electrical to sound energy transformation?oven toasterrice cookerdoorbellflat iron120sEditDelete