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- 1. Multiple Choice
The Law of Conservation of Energy states:
Energy can created or destroyed but not transformed
Energy cannot be created or destroyed, it can only transformed
Energy can't be created, destroyed or transformed
Energy cannot be created or destroyed.
- 2. Multiple Choice
What kind of energy does an object possess when it's resting on top of the hill?
Potential Energy
Chemical Energy
Kinetic Energy
All of the above
- 3. Multiple Choice
What do you need to add to kinetic energy in order to find an object’s mechanical energy?
Initial Energy
Gravitational Energy
Thermal Energy
Potential Energy
- 4. Multiple Choice
What force causes a roller coaster cart to slow down the most?
friction
weight
gravity
air resistance
- 5. Multiple Choice
What is the formula for Kinetic Energy?
KE = mass x velocity
KE= 1/2 x mass x velocity 2
KE = mass x gravity x height
KE = mass x velocity / 2
- 6. Multiple ChoiceWhat energy transformation occurs from a light bulb?Electrical energy = kinetic energy + potential energyElectrical energy = electrical energyElectrical energy = chemical energyElectrical energy = light energy + thermal energy
- 7. Multiple ChoiceThe law of energy conservation says the total energy before the change _______ the total energy after itis less thanis more thanaffectsequals
- 8. Multiple ChoiceWhich 2 letters have the most kinetic energyW & YX & Z
- 9. Multiple ChoiceEnergy can be created.TrueFalse
- 10. Multiple ChoiceRoller coasters slow down because their energy disappears.TrueFalse
- 11. Multiple Choice
Which form of energy is represented in this image?
kinetic
thermal
potential
radiant
- 12. Multiple Choice
What happens when the ball goes from the highest position to the lowest position
PE and KE increases and decreases together
Impossible to know without knowing the mass of the object
the PE decreases while KE increases
- 13. Multiple ChoiceAt which point is potential energy greatest?WXYZ
- 14. Multiple Choice
What kind (s) of energy is (are) in this image?
Potential
Kinetic
Both Potential and Kinetic
- 15. Multiple Choice
The SI Unit for Energy is
Joule
Potential
Calorie
Kilojoule
- 16. Multiple Choice
Efficiency is calculated by Energy Out divided by Energy In, expressed as a percentage
False
True
- 17. Multiple Choice
What percentage of Energy is wasted by a human being converting food into work?
15%
25%
50%
75%
- 18. Multiple Choice
A combustion engine driving car loses most of it energy (75%) to heat. Is this energy loss or energy transformation?
loss
transformation
neither
both
- 19. Multiple Choice
A toy car down a ramp loses most of its energy to
friction
sound
heat
gravity
- 20. Multiple Choice
The energy of a certain point with respect to some reference point is
Spatial Energy
Velocity
Potential Energy
Kinetic energy
- Answer choicesTagsAnswer choicesTags