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Science
7th
grade
GCS Grade 7 Science Practice Questions Energy Conservation and T
30 questions
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- 1. Multiple ChoiceEnergy of motion is which type of energy?PotentialKineticSoundGravitational
- 2. Multiple ChoiceWhat type of energy is in this picture?KineticPotentialChemicalSound
- 3. Multiple ChoiceWhat kind of energy is represented in this picture?ThermalPotentialNuclearMechanical
- 4. Multiple ChoiceWhat kind of energy does this device use?ChemicalElectricalThermalChemical
- 5. Multiple ChoiceA battery converts what type of energy to another?sound to kineticlight to heatmechanical to electricalchemical to electrical
- 6. Multiple ChoiceWhat machine changes electrical energy into light and sound energy?batterylightbulbalarm clockapple
- 7. Multiple ChoiceOn a roller coaster, where is maximum potential energy?At the bottom of a big hillWhen going around a cornerWhen going upside downAt the top of a big hill
- 8. Multiple ChoiceOn a roller coaster, where is maximum kinetic energy?At the bottom of a big hillWhen going around a cornerWhen going upside downAt the top of a big hill
- 9. Multiple ChoiceEnergy that comes from the nucleus of an atom. A form of potential energy.chemical energyNuclear energySound energyElectrical energy
- 10. Multiple ChoiceAccording to which law of energy, energy can't be created or destroyed?First law of motionThe law of tacosLaws of Energylaw of conservation of energy
- 11. Multiple ChoiceWhich ball has the most gravitational energy?Ball ABall BBall CBall E
- 12. Multiple ChoiceWhen a pendulum swings, at which point is the Kinetic Energy at its Max?1234
- 13. Multiple ChoiceWhat is energy conversion?one type of energy changing to another type of energyenergy in one object going into another objectenergy units changingenergy units staying the same
- 14. Multiple ChoiceWhich is the best example that something has kinetic energy?a. a car parked on a steep hillb. a tennis ball rolling across the courtc. a picture hanging on the walld. a piece of coal before it's burned
- 15. Multiple ChoiceWhat would have the greatest kinetic energy?A car driving down a hill.A person running down a hill.A ball rolling down a hill.leaves rolling down a hill
- 16. Multiple ChoiceWhen a pendulum swings, at which point is potential energy at its greatest?1234
- 17. Multiple Choice
Which energy-conversion process occurs whenever coal is burned?
chemical to thermal
mechanical to thermal
mechanical to electrical
- 18. Multiple Choice
What happens when a pebble lying on the ground is kicked?
Energy is completely lost.
Energy is transferred.
Energy is destroyed
Energy is created.
- 19. Multiple Choice
Which has the most kinetic energy?
a basketball rolling down a hill
a bus stopped at the top of a hill
a dump truck driving down a hill
a golf ball sitting at the top of a hill
- 20. Multiple ChoiceName the Energy conversion from the Sun to a growing apple tree.Nuclear → ElectricalGravitational → ThermalChemical → MotionRadiant → Chemical
- 21. Multiple ChoiceWhich type of energy is represented by a rubber band.ThermalElasticGravitationalSound
- 22. Multiple Choice
What is the energy conversion when you plug in a stereo and listen to music?
electrical to mechanical
chemical to heat
electrical to sound
potential to sound
- 23. Multiple ChoiceA device that converts electrical energy to light energy.A blenderA light bulbA bicycleA balloon
- 24. Multiple ChoiceA device that converts Electrical Energy to Radiant energy.A BlenderA Light BulbA BicycleA Balloon
- 25. Multiple ChoiceRoller coasters slow down because their energy disappears.TrueFalse
- 26. Multiple ChoiceWhat kind of energy is in a rock at the edge of a cliff?PotentialKinetic
- 27. Multiple ChoiceCan energy be destroyednoyes
- 28. Multiple Choice
Energy stored because of gravity is called:
Gravitational Potential Energy
Kinetic Energy
Mechanical Advantage
Chemical Energy
- 29. Multiple Choice
If a red ball is higher than a blue ball and both balls have the same mass, which ball has more potential energy?
they both have the same potential energy
Red ball
blue ball
- 30. Multiple Choice
A 21.7kg ball located on a shelf 1.6m above the ground. Which best describes the energy of the ball?
Its energy is lost once it falls off the shelf.
It has mechanical energy in the form of potential energy
It has mechanical energy in the form of kinetic energy.
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