Power
Parts
Circuit Concepts
General Facts
100

What unit is power measured in?

Watts(W)

100

What is the job of the capacitor?

The capacitor stores energy which comes from the battery.

100

What is an OR Circuit?

An OR circuit is a circuit with 2 switches, and you can press either of the switches to turn the circuit on. 
100

How do switches work?

When the switch is off, the wire in there is disconnected, and when the switch is on, the wire is connected.

200

How do you measure power?

Power = Voltage * Current

200

Are all capacitors polar?

No

200

What is a short circuit?

A short circuit is a circuit where there is a low-resistance path from the batteries back to the batteries. 

200

What is an RC Circuit?

An RC Circuit is a Resistor Capacitor Circuit

300

What unit are capacitors measured in?

Microfarads

300

Which component is used in buffering applications?

Transistors

300

How does polarity work?

Polarity is the direction of the flow of electricity through the circuit. Some parts have their electricity in only 1-way, so the part needs to be put the right way due to polarity. 

300

Electricity is the movement of subatomic charged particles also known as _____

Fill in the blank.

Electrons

400

How do you figure out how many volts a circuit takes?

First, you need to find the voltage. To find the voltage, you multiply the current by the resistance. Then, you can use the voltage to measure how many volts are in the circuit, since volts measure the voltage. 

400

What is the RV? Give an example of when the RV might be needed in a circuit in your home. 

The RV is a Resistor Variable which can be adjusted to any amount of resistance which will affect the circuit. The RV is used in circuits that change how bright and dim the light is. 

400

What is an example of when the AND Circuit would be used in your house?

For turning on lights. One of the switches are the switches in the room, and the other switch is the master switch. 

400

Which unit has an output connection and an input connection. Give the ID. 

U4

500

Why can't you use the L1 in a circuit with 2 battery holders when the voltage is not limited through the circuit?

Because the L1 only stores 2.5 Volts, and 2 battery holders is 6 Volts, and if the voltage is not limited across, too much power will get to the L1, therefore damaging it. 

500

How does the X1 work?

The X1 is the microphone. The microphone is a resistor that changes in value as the air pressure changes. 

500

If any circuit contains the U1, will it contain a transistor? Explain why. 

If any circuit contains the U1, the circuit will contain a transistor because the U1 is an IC, and transistors are the main building blocks of IC's.

500

Why do you think U4 is the only unit that has a connection for filtered power from batteries?

It has that because the U4 is an IC which amplifies sound, and in order for it to amplify, the sound needs to be nice and clear, so the connection filters the sound as it passed through the U4.