Have an account?
Skip to Content
Build your own quiz
23 questions
Show Answers
See Preview
- 1. Multiple Choice
units of force are
newtons
grams
joules
meters
- 2. Multiple Choice
units for work are
newtons
joules
meters
seconds
- 3. Multiple Choice
if you push a cart with a force of 60 N for 2 m... how much work have you done
120 J
30 J
120 N
30 N
- 4. Multiple Choicework transferssweatenergyvelocityeffort
- 5. Multiple ChoiceWhat is the formula for work?Force = work x distanceDistance = force x workWork = force x distanceWork = force x mass
- 6. Multiple Choice
Fred kicks a ball with a force of 20N to George, who is 5M away. How much work was done to the ball?
25J
100J
4J
75J
- 7. Multiple Choice
If 40N of force is applied to Rollo Koster's 10 kg cart over a distance of 50 meters, how much work is done?
8000J
8000N
4000J
2000J
- 8. Multiple ChoiceEnergy can not be created or destroyed, only converted from one form to another.truefalse
- 9. Multiple ChoiceForce is a _____ or _______simple complexpush pullup downin out
- 10. Multiple ChoiceWhich situation is work not done?lifting a 20 pound box off the floorholding a 20 pound box above the floorsliding a 20 pound box across the floorsliding a 20 pound box up an inclined plane
- 11. Multiple ChoiceWhat is work?A push or pull.When the object moves in the same direction in which the force is exerted.A change in energy.The rate at which energy is transferred.
- 12. Multiple ChoiceWhich is doing work?pushing a wallholding a boxpicking up a pencilsitting in a chair
- 13. Multiple ChoiceWhich of the following is the best example of work being done?doing homeworklifting a boxpushing a stationary boxholding a box
- 14. Multiple Choice
A machine with a 5-N input force and a 25-N output force has a mechanical advantage of?
2
5
20
125
- 15. Multiple Choice
The mechanical advantage of a pulley system depends upon?
The diameter of the pulley wheels
The length of the rope
The number of sections of rope
The direction of the input force
- 16. Multiple Choice
No machine can be 100% efficient because of
Thermal energy
Waste energy
Convection energy
Friction
- 17. Multiple Choice
Which is not considered a simple machine?
The pump
The wheel & axle
The wedge
The screw
The pulley
- 18. Multiple Choice
Which is not a simple machine?
Wedge
screw
lever
fulcrum
- 19. Multiple Choice
The Mechanical Advantage (MA) of a simple machine makes work
Easier
Harder
No difference to the work done
None Of the above
- 20. Fill in the Blank
You apply a force of 18 N on to the end of a lever to open a paint can lid. The
resistance of the lid is 9 N. Calculate the MA.
- 21. Fill in the Blank
You apply a force on a crowbar to open a stuck door. The effort length of the
crowbar is 26 cm long and the resistance length is 4 cm. Find the MA of the crowbar.
- 22. Fill in the Blank
You are using a ramp to move a heavy box into a moving truck. If the length of the ramp is 4 m and the height into the truck is 1m, what is the mechanical advantage of the ramp?
- 23. Fill in the Blank
Calculate the mechanical advantage if 500N force is needed to overcome the load of 1000N.
- Answer choicesTagsAnswer choicesTags