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CAPT PHYSICS
DON’T PRINT THIS PAGE
a) watch the following video that provides a helpful analogy
between pressure and voltage
https://www.youtube.com/watch?v=r--neVvBTCI
Now answer the following questions 1 THROUGH 8 on the next
page below
b) watch these selected SEGMENTS from the following video:
Time 0:00 through 5:20 (stop at Parallel circuits). Then begin at
6:35 to 7:15. Then end with 7:35 to the end.
https://www.youtube.com/watch?v=D2monVkCkX4&list=PL3A1792F782FE8D3E
For #’s 9 THROUGH 18 below list 10 important points from
this video (your list must include points made in the WHOLE
video, not just in the first few minutes of the video).
c) watch this Video...REALLY HELPFUL explanation of
Voltage, Ohms, and Resistance
https://www.youtube.com/watch?v=zYS9kdS56l8&list=PL3A1792F782FE8D3E
Now answer the following questions 19 THROUGH 24 on the
next page below
d) watch these LAST 2 Videos...also REALLY HELPFUL
https://www.youtube.com/watch?v=E8AZBR8Zz04 Watch sections 0:00 through 4:24,
then skip to %:51 and go to the end.
https://www.youtube.com/watch?v=QwNSa_8ro_Y
e) Look at these calculations:
A series circuit is a circuit in which resistors are arranged in a chain, so the
current has only one path to take. The current is the same through each resistor.
The total resistance of the circuit is found by simply adding up the resistance
values of the individual resistors:
equivalent resistance of resistors in series : R = R1 + R2 + R3 + ...
A series circuit is shown in the diagram above. The current flows through each
resistor in turn. If the values of the three resistors are:
With a 10 V battery, by V = I R the total current in the circuit is:
I = V / R = 10 / 20 = 0.5 A. The current through each resistor would be 0.5 A.
Now answer the LAST of the following questions 25 THROUGH
30 on the next page below.
PRINT THIS AND THE NEXT PAGE ONLY
Name ________________________
30 Points !!!
Id# ____
CAPT PHYSICS: ELECTRICITY
Video #1:
1. How is voltage like water pressure:
2. What is a circuit
3. a) Define voltage:
b) What unit is it measure in (AND, include symbol)
4. a) Define current:
b) What unit is it measure in (AND, include symbol)
5. a) Define resistance:
b) What unit is it measure in (AND, include symbol)
6. Complete this phrase:
“Electricity that leaves a source must ______________________________”
7. What does a voltmeter (aka multi-meter in the diagram) measure
8. What does an ammeter measure
Video #2:
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
Video #3:
19. What is happening in the battery ?
20. What is static voltage
21. What happens when you close the switch in a circuit connected to a battery
22. How does a motor go “zoom” ?
23. What is the job of a resistor ?
24. What is Ohm’s Law in WORDS:
Video #4 and 5:
25.
26.
27.
28.
Draw a schematic of a battery
Draw a schematic of a resistor
Draw a schematic for an incandescent light
Calculate the voltage on a battery supplying a series circuit in which the current
measures 0.8 amps and there are 4 resistors R1= 7 Ohms, R2= 5 Ohms , R3= 3
Ohms, and R4= 2 Ohms. SHOW ALL WORK AND INCLUDE UNITS !!!!
LAST PROBLEM….Yeah !!!!
29. Calculate the current flowing through a series circuit supplied by a 12 volt battery.
The circuit has 2 resistors: R1 = 2.5 Ohms and R2= 3.7 Ohms SHOW ALL
WORK AND INCLUDE UNITS!!!!