1.6 circuit symbols and control stuff

Question 1

What 3 things affect a sensor

Answer 1

-Light
-Temperature
-Movement

Question 2

What are sensors used for

Answer 2

to give an input to an electronic circuit

Question 3

What does a Light Dependent Resistor (LDR) do?

Answer 3

Change its resistance based on light levels

Question 4

When resistance of an LDR goes up what happens to the light level?

Answer 4

Goes down

Question 5

What does a thermistor do?

Answer 5

changes its resistance based on the temperature

Question 6

When the temperature goes down, what happens to the resistance in a thermistor?

Answer 6

Goes down

Question 7

What 2 things does control in a circuit take care of?

Answer 7

-The direction of current (Amps) flow
-Strength of signals/potential (volts)

Question 8

What 2 things can a transistor do?

Answer 8

-Act as an electronic switch
-Can amplify current (Amps)

Question 9

what does BCE stand for?

Answer 9

B= Base
C= Collector
E=Emitter

Question 10

What is a resistor?

Answer 10

Component used to control/ limit current in a circuit

Question 11

What is resistance measured in?

Answer 11

Ohms (Omega)

Question 12

What is a switch?

Answer 12

Component used to turn things on and off

Question 13

What is output in a circuit?

Answer 13

Outputs take electrical energy and convert to another type, eg. light, motion, heat, sound, force

Question 14

What is a buzzer used for?

Answer 14

uses electrical energy to make a single tone

Question 15

What is an LED (light emitting diode)?

Answer 15

LEDs take electrical energy and output light

Question 16

What is the difference between parallel and series circuits?

Answer 16

in series means the resistors are one after another.