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- 1. Multiple ChoiceWhat is work?A push or pull.The distance an object can be moved.Applying a force & moving an object.The rate at which energy is transferred.
- 2. Multiple ChoiceThe door to the classroom weighs 3 kg. How much work is done when Michael pushes on the door to the classroom with 15 Newtons of force, pushing the door 1.3 meters?45 Joules19.5 Joules3.9 Joules58.5 Joules
- 3. Multiple ChoiceMs. McDonald holds a desk perfectly still above her head. If she holds the desk at a height of 0.5 meters above her head, and applis 68 Newtons of force to do so, how much work has she done?34 Joules0 Joules
- 4. Multiple ChoiceI do 12 Joules of work on a bookcase. If I apply a force of 6 Newtons, how far have I moved the bookcase?2 meters792 meters17 meters320 meters
- 5. Multiple ChoiceIf you move an object a greater distance...you have more poweryou do more workyou do the work fasteryou do less work
- 6. Multiple ChoiceIf you push an 5 N object 2 m and then push a 10 N object 2 m. which is TRUE?you do the same amount of workyou are more powerful when you move the 5 N objectyou do more work when you move the 10 N objectyou use the same amount of force
- 7. Multiple ChoiceWhat is the definition of power?the amount of work an object doesthe rate at which force is appliedthe amount of matter in an objectthe rate at which work is done
- 8. Multiple ChoiceJohann Sebastian Bach carries his piano up the stairs doing 2500 Joules of work. If he did this in 25 seconds, how much power did he do?62,500 Watts6200 Wats100 Watts125 Watts
- 9. Multiple ChoiceGravity is pulling down on Mr. Mitchell with 850 Newtons of force. If he climbs 30 meters up the cliff in 30 seconds, how much power did he show?850 Watts28.3 Watts765,000 Watts1.06 Watts
- 10. Multiple ChoiceKyrell pushes a basketball with a force of 32 Newtons. In 4 seconds, he moves the ball 12 meters. How much power did Kyrell demonstrate?32 Watts96 Watts10.67 Watts1536 Watts
- 11. 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.
- 12. 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.
- 13. Multiple ChoiceWhat are energy and work measured in?JouleWattBirdsNewton
- 14. Multiple ChoiceForce is measured using which type of unit?MetersKilogramsNewtonsJoules
- 15. 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
- 16. Multiple ChoiceThe product of the net force on an object and distance through which the object is movedWorkPowerEnergyAcceleration
- 17. Multiple ChoicePerson A is twice the weight of Person B and climb the same hill. If person A gets the top in half the time then...Person A is twice as powerfulPerson B is twice as powerfulPerson A is four times as powerfulPerson B is four times as powerful
- 18. Multiple ChoiceIf a new fork lift can do the four times the amount of work in the same amount of time of an old forklift, then the new forklift is...Twice as powerfulFour time as powerfulSixteen times the powerof equal power of the old forklift
- 19. Multiple ChoiceWhat is the transfer of energy that occurs when a force makes an object move?powerworkforceefficiency
- 20. Multiple ChoiceThe amount of power produced or used depends on which of the following?work and timeforce and distancework and forcetime and distance
- 21. Multiple ChoiceWhat is the unit of measurement for power?newtonsjouleswattsmeters
- 22. Multiple ChoiceAnother SI unit for a joule ism/secN-mmeter
- 23. Multiple ChoiceTommy carries his piano up the stairs doing 100 Joules of work. If he did this in 10 seconds, how much power did he do?62,50 Watts1000 Watts10 Watts
- 24. Multiple ChoiceWork requires force and _______.distancetimeposition
- 25. Multiple Choice
A job is done slowly, and an identical job is done quickly. Both jobs require the same amount of ___, but different amounts of _____
work, work
power, work
work, power
force, work
- 26. Multiple ChoiceIf a powerlifter raises a 1000 N weight a distance of 2.0 meters in 0.5 seconds, what is his power output?1000 W2000 W4000 W5000 W
- 27. Multiple Choice
Which of the following is the minimum amount of work done by a hydraulic lift to raise an aluminum block 2.0 m with a MASS of 150 kg?
75 J
300 J
1470 J
2940 J
- 28. Multiple Choice
In which of these cases is work being done?
A student stands with her backpack on her back
A student pushes a locked door that does not move
a student pushes his chair into another room
A student sits on the carpet
- 29. Multiple ChoiceWork/Time = ________?ForceSpeedVelocityPower
- 30. Multiple ChoiceCalculate the amount of work done if you use a 100N force to push a 50 kg box 5 m across the kitchen floor.250 J500 J5000 J50,000 J
- 31. Multiple ChoiceA 16 N force is applied to an object and 96 J of work is done. How far was the object moved?6 m16 m80 m1536 m
- 32. Multiple ChoiceA watt is defined as ___________One joule per secondOne horsepower per secondA force of one pound over a distance of one footA force of one newton over a distance of one meter
- 33. Multiple ChoiceWork is done when a weightlifter holds a barbell still above his head.TrueFalse
- 34. Multiple ChoiceForce is measured using which type of unit?MetersKilogramsNewtonsJoules
- 35. Multiple ChoiceAnother SI unit for a joule ism/secN-mmeter
- 36. Multiple ChoicePerson A is twice the weight of Person B and climb the same hill. If person A gets the top in half the time then...Person A is twice as powerfulPerson B is twice as powerfulPerson A is four times as powerfulPerson B is four times as powerful
- 37. Multiple Choice
Which of the following is the best example of work being done.
doing homework
lifting a box
pushing a stationary box
holding a box
- 38. Multiple ChoiceHow far does a car that weighs 5,000 N go if 18,000 J of work is done on it?3.8 m3.7 m3.2 m3.6 m
- 39. Multiple ChoiceYou move a 12-newton box up a 6-meter ramp. In order to find out how much power you created, what would you need to know?The mass of the boxThe slope of the rampThe direction the box movedHow long the task took
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