Froggy Jumps Energy Transformations QuizVersion en ligne Test your knowledge on energy transformations and the law of conservation of energy! par Yveth Moreno 1 A microwave change electrical energy to ________ energy a radiant b work c mechanical 2 when you throw a ball upward, the ball has its greatest speed an more _______________ energy. a kinetic b thermal c potencial 3 what's kinetic energy? a the energy an object has due to motion b the way to reduce friction c the energy for cooking and heating 4 What are energy transformations? a the force that resist motion b changes from electrical energy to radiant to thermal c a way to reduce friction 5 When the ball reaches its highest point , the ball gains its greatest _________ energy a potencial b kinetic c mechanical 6 What does the law of conservation of energy state? a Energy cannot be created or destroyed only transformed b Energy can be destroyed c Energy can be created 7 What type of energy transformation occurs in a battery when it powers a device? a Chemical to electrical b Electrical to thermal c Radiant to mechanical 8 When a roller coaster goes down a hill, what energy transformation occurs? a Kinetic to thermal b Potential to kinetic c Chemical to radiant 9 What energy transformation happens when a light bulb is turned on? a Radiant to chemical b Electrical to thermal c Thermal to mechanical 10 In a solar panel, which energy transformation takes place? a Chemical to kinetic b Electrical to thermal c Radiant to electrical 11 What energy transformation occurs when food is digested in our bodies? a Kinetic to electrical b Thermal to mechanical c Chemical to thermal 12 What is an example of thermal energy being converted to mechanical energy? a Steam powering a turbine b Solar panel generating electricity c Battery powering a light 13 Which transformation describes a car engine converting fuel into motion? a Kinetic to radiant b Electrical to thermal c Chemical to mechanical 14 As the ball moves down potencial energy decreases a true b false c 15 As the ball moves down kinetic energy increases a true b false c 16 What's friction? a the force that resist the motion. b the change of energy c the device we use to measure 17 As you pedal a bycycle, you do __________and transfer energy to the bicycle. a work b nuclear c radiant 18 Because of the friction between the moving parts of the bicycle, some of your work changes to __________ energy a thermal b waste c 19 Uses of thermal energy a cooking and heating b cleaning c 20 stove and furnaces change chemical energy into a thermal energy b potencial energy c 21 During photosynthesis, plants transform RADIANT energy into _________ stored in food. a CHEMICAL b waste of energy c potencial 22 Your body change chemical energy (stored food) into __________ as you move a kinetic b potencial c radiant 23 When your body moves, the kinetic energy transform into ___________ which keeps your the body temperature high. a thermal b electric c radiant 24 A television transform electric energy into ________ a sound energy and radiant energy b chemical energy c te energy 25 Most devices like smarthpones, lamps, use electric energy from________ a electrical power plants. b the sun c 26 With battery-powered devices, chemical energy is transformed into a waste energy b electrical energy c 27 With battery -powered devices, ___________ energy is transformed into electrical a chemical b radiant c 28 What is waste energy? a energy that can not be used. b transformed energy c 29 A light bulb converts electrical energy primarily into light and heat energy a true b false c
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