One problem with this program is that the picture components are a little too large on the screen... it would be nice to be able to alter their size, but you can't. What you can do is switch to symbol mode instead of picture mode - this easily accomplished via pull-down menu selection, or by clicking on the circuit symbol button:

All sorts of measurements can be applied to all the components, very easily. Crocodile Physics gets high marks for providing a great environment for free exploration of circuits - you will enjoy how easy it is to use and will have fun watching the circuits respond.

Interested in purchasing Crocodile Physics? You can find an in depth review, plus contact and pricing information at this page.

Have fun exploring electricity with Crocodile Physics!

Task:

Perform the electricity activities in Crocodile Physics as instructed by your teacher, carefully following the directions on screen. If you don't get it the first time, try again! Answer all the questions on each page, then move to the next page using the arrows at the bottom or top of the simulation.

When you have completed the simulation(s), review the answers at the end to see how you did!

Extension:

Want an extra challenge? Design your own circuitry! Go into the electricity module by pressing one of the first two buttons on the left hand side of the screen (the first button is symbol mode - the second button gives you actual pictures of electrical components)

Now use the icons at the top of the screen to add things to your simulation. Explore! Try building the following:

• any circuit tasks assigned to you by your teacher.
• a series circuit with three bulbs - make sure it has a switch!
• a circuit with four bulbs in parallel - you should be able to operate each bulb independently, and the whole circuit should have a switch allowing you to turn off all the bulbs at once.
• a combination circuit that has six bulbs - some connected in series, others in parallel.
• extra hard challenge - design a series, parallel and combination circuit together in the same simulation! Doubt it can be done? Click on the image below for one possible solution (no copying!)