|
Short Circuit
Critical Contact Points
This pre-lab activity is designed to prepare you, as a student, to work with a battery, a bulb and a wire to make a complete circuit. Try to predict which of the photos below will cause the light to glow and which will be unsuccessful. After you have made your prediction, pass your mouse over the photo to see if you were right!
This activity includes the following materials:
1 "D" Battery
1 small 12 volt Light Bulb
1 piece of wire with the ends exposed. |
|
Hopefully your experiment will end up like this:
|
 |
How many of your predictions were correct? In order to cause the bulb to glow, there are some contacts that must be made. (Critical means necessary.) Using your own sheet of paper, take the quiz below to see if you have figured out the critical contact points.
- How many critical contact points did you find?
- Name the parts of the bulb that are critical contact points.
- Name the parts of the battery that are critical contact points.
- How many ways can you make the bulb glow?
- If you get the bulb to glow, that means you have created a ___________.
- Does it matter which end of the wire touches which end of the battery?
After you finish this quiz, complete the following activity. On the same sheet of paper as your quiz, draw a diagram of the ways that you predict the bulb will glow. Then draw some unsuccessful ways that will not light the bulb.
|
