Start
Wait for it ..
Objective: To use Coulomb's law of electric force to predict the effect of varying charge and varying separation distance upon the electrostatic force between two objects. If you miss a question, then you will eventually be given a very similar question. You can use the Help button at any time. 
Coulomb’s Law
Loading ...
Type your name and tap the Start button.
Charge Changes 5 Questions The effect of charge on electrostatic force.
Pick from among the three activities -  Charge Changes, Distance Matters, and Putting it All Together.
Master Level Completed
Student Name:
Distance Matters 5 Questions The effect of separation distance on electrostatic force.
Begin Wizard Level
Wizard Level Completed
Begin Apprentice Level
Main Menu
Begin Master Level
Putting it All Together 5 Questions The effect of both charge and separation distance on electrostatic force.
Apprentice Level Completed
Dataway! You have answered correctly. Click the Continue button to continue working on this Skill Building activity.
Universal Gravitation
You have done it! You have successfully analyzed each of the situations in the Charge Changes activity.
You have done it! You have successfully analyzed each of the situations in the Putting it All Together activity.
Continue
You have done it! You have successfully analyzed each of the situations in the Distance Matters activity.
Return to Main Menu
O’ Drats! Your answer is incorrect. You’ll see a similar question very soon. Use the Help button to improve your chances of getting it correct. Click Continue.
BA
Yes, Return
#7
units
#9
No, Stay Here
#6
Tap for Question-Specific Help
#5
Help Me!
Check Answer
#4
View Directions
#3
New Electrostatic Force = 
To Main Menu
#2
#1
Level:
If you return to the Main Menu, then you will lose all your progress  on this activity. Are you sure you want to return to the Main Menu?
#8
Progress Report