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- 1. Multiple ChoiceSome students observing a classroom device being used, noticed the below energy transformations.
Electrical → Mechanical → Sound
Which device were the students most likely observing?A triple beam balance measuring an object’s mass.A pencil sharpener plugged into a wall outlet.A projector displaying a diagram on the screen.A working flashlight used to light up a dark corner. - 2. Multiple ChoiceWhich type of energy transformation occurs when a flashlight shines?chemical → thermal → electricalchemical → electrical → lightthermal → chemical → lightchemical → electrical → chemical
- 3. Multiple ChoiceWhen water falls through a dam and turns a turbine connected to a generator, electricity is produced. This electricity is often used to light our homes and offices. Which of the following shows the energy transformations that occurs?electrical → light → mechanicalchemical → mechanical → electricalmechanical → chemical → lightmechanical → electrical → light
- 4. Multiple ChoiceA lamp that plugs into a wall socket draws energy which flows through a thin wire in the bulb causing it to glow. What energy transformations are taking place?chemical → light → electricalmechanical → sound → lightthermal → solar → electricalelectrical → thermal → light
- 5. Multiple ChoiceWhich of the following shows the correct order of the energy transformations that occur when green plants produce their food from the Sun’s energy?chemical → thermallight → chemicalthermal → lightchemical → electrical
- 6. Multiple ChoiceThe Theory of the Conservation of Energy states -Energy can be created, just not destroyed. It changes its form from one type to another.Energy can never be created nor destroyed. It can only change its form from one type to another.The total energy in our Universe changes, as different forms of energies can be transformed from each other under certain circumstances.Energy transformations do not passively occur in our lives, rather we actively make use of energies and transform energies.
- 7. Multiple Choice
Solar Energy is transferred to _____ Energy.MechanicalSolarSoundElectrical - 8. Multiple ChoiceElectrical Energy is transferred to _____ Energy.ThermalSolarElectricalNone
- 9. Multiple ChoiceKinetic Energy is transferred to _____ Energy.SolarElectricalThermalPotential
- 10. Multiple ChoiceWhich of the following shows an energy transformation from chemical energy to electrical to light energy?A bolt of lightning lights the night sky.A candle glows brightly in the dark.A fire in a fireplace lights up a room.A battery causes a flashlight to shine.
- 11. Multiple ChoicePeople get energy from the food that they eat and transform that energy as they move. Which energy transformations occur as a student rapidly rubs the palms of his hands together?mechanical to thermal to electricalchemical to mechanical to thermalmechanical to chemical to soundchemical to sound to electrical
- 12. Multiple ChoiceA television works by transforming electrical energy into what other kinds of energy?Light, thermal, and soundThermal, chemical, and solarSound, mechanical, and electricalLight, chemical, and mechanical
- 13. Multiple ChoiceEnergy transformations occur when...energy is created through conductionenergy changes from one form to anothertwo forces slide together that are touchinga chemical reaction takes place
- 14. Multiple Choice
Energy is the ability to do work or cause changes.
True
False
- 15. Multiple Choice
Which of following are types of kinetic energy? Check all that apply.
sound energy
light energy
thermal energy
mechanical energy
potential
- 16. Multiple Choice
We receive ________ and heat energy from the Sun.
sound
mechanical
light
kinetic
- 17. Multiple Choice
Vibrations produce _______ energy.
chemical
sound
potential
light
- 18. Multiple Choice
Which of the following is an example of kinetic energy?
A rock at the top of a hill.
Water falling down a waterfall.
A pencil sitting on a desk.
A backpack on the ground.
- 19. Multiple ChoiceEnergy is stored in the ___ of an atom.protonneutronelectron cloudnucleus
- 20. Multiple ChoiceHow do nuclear power-plants work?FusionHalf-lifeFissionFusion or fission
- Answer choicesTagsAnswer choicesTags