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- 1. Multiple Choice
units of force are
newtons
grams
joules
meters
- 2. Multiple Choice
units for work are
newtons
joules
meters
seconds
- 3. Multiple Choiceif you push a cart with a force of 60 N for 2 m... how much work have you done120 J30 J120 N30 N
- 4. Multiple Choiceboth work and energy are measured injoulesnewtonsmetersseconds
- 5. Multiple ChoiceThe unit used to measure power is theWattNewtonJouleNewton*meter
- 6. Multiple Choice
Which of the following is the best example of work being done.
studying for a test
lifting a box
carrying groceries into your house
holding a box
- 7. Multiple ChoiceWork done = Force x _________a. distanceb. accelerationc. velocityd. speed
- 8. Multiple ChoiceEnergy due to motion is ____________ energy.PotentialEnergyKineticFriction
- 9. Multiple ChoiceThe faster an object moves, the ________ kinetic energy it has.morelessnone of the aboveall of the above
- 10. Multiple Choice__________ is stored energy.PotentialKineticNone of the aboveAll of the above
- 11. Multiple Choice
At which point is potential energy greatest?WXYZ - 12. Multiple ChoiceWhat kind of energy is in a rock at the edge of a cliff?PotentialKineticBoth potential and kinetic energynone of the above
- 13. 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
- 14. Multiple ChoiceWhat are the two factors that affect kinetic energy?time and energypower and massmass and speedtime and work
- 15. Multiple ChoiceAt which point is kinetic energy greatest?WXYZ
- 16. Multiple ChoiceThe unit used to measure work is theWattNewtonJoulemeter
- 17. Multiple ChoiceThe more POWER you use to move an object, the more work you do.TrueFalse
- 18. Multiple ChoiceWhat is the equation for power?P = Work/timeP = Force/timeP = time/distanceP = Work * time
- 19. Multiple ChoiceWhich of the following would result in an increase in power?Decrease the amount of time to do work.Increase the amount of time to do work.Decrease the distance moved.Decrease the amount of work done.
- 20. Multiple ChoiceA Mustang has more horsepower than your mom's minivan. What does this mean?The Mustang has a higher topspeed.The minivan has a worse gas mileage.The Mustang can do work faster.The Mustang will die.
- 21. Multiple Choice
The factor that has the greatest effect on kinetic energy is
mass
weight
velocity
time
- 22. Multiple Choice
As a falling apple approaches the ground, its potential energy
increases
decreases
stays the same
- 23. Multiple Choice
As a falling apple approaches the ground, its kinetic energy
increases
decreases
stays the same
- 24. Multiple Choice
A girl carries a heavy suitcase quickly up a flight of stairs. A boy of the same weight carries the same suitcase slowly up the flight of stairs. Which statement is true?
The girl did less work and had less power than the boy
The girl had less power than the boy
The girl did more work and had more power than the boy
The girl had more power than the boy
- 25. Multiple Choice
Which ball has the greatest kinetic energy?
A
B
C
D
E
- 26. Multiple Choice
By increasing the speed at which you do work, you increase your
Work
Energy
Power
- 27. Multiple ChoiceYou push against the back of your friends car that is stuck. You push and be become very tired. Did you do work?Yes, work was doneNo, work wasn't done
- 28. Multiple Choice
A baseball is thrown straight up into the air. At which point is the potential energy of the baseball the least?
At the apex
Halfway up
Right before it is caught
Halfway down
- 29. Multiple ChoiceAdam does the same amount of work in less time than Joseph. Who has more power?AdamJosephThey have the same amount of powerNeed more information
- 30. Multiple ChoiceThe faster an object moves, the ________ kinetic energy it has.morelessnone of the aboveall of the above
- 31. Multiple ChoiceGravitational potential energy depends on the ________ and ________ of the object.Height and massFriction and movementMass and MovementHeight and Friction
- 32. Multiple ChoiceWhen a pendulum swings, at which point is potential energy at its greatest?1234
- 33. Multiple ChoiceTrue or false
You do work only when you exert a force on an object and move ittruefalse - Answer choicesTagsAnswer choicesTags