2 YR2_T2_LSN8 2.4 Circuits + Kwizl part 1

• Science
• Middelbare school
• havo, vwo
• Leerjaar 2

YR2_T2_LSN8

Topic 2.4 Circuits

Planning for today

• Repeat topic 2.4 Circuits
• Bean Project

Voltage

 Voltage (U) is how much electrical energy each electron is carrying. 

 

Measured in Volts (V) with a voltmeter

Current

A current (I) is how many electrons flow past every second.

 

Measured in Amps (A) with an "ammeter" (amperemeter)

Learning goals 2.4

I can…

• explain the basic components necessary for building a simple circuit.
• draw circuit diagrams by using the circuit symbols.
• explain the advantages and disadvantages of a series circuit.
• calculate the current or voltage at various points in a series circuit.
• explain the advantages and disadvantages of a parallel circuit
• calculate the current or voltage at various points in a parallel circuit
• use an ammeter or voltmeter to properly measure the current or voltage at a certain point in a circuit.

Key words

• wire
• power source
• batteries
• switch
• lamp
• bell
• Volt meter
• Ammeter

• motor
• LED
• series circuit
• parallel circuit
• consumption

Basic circuit

Copper wire connects the voltage source to the device and back again. When the switch is closed the electricity can flow through the wire and light the bulb.

Drawing a circuit

These symbols make drawing circuits easier

2.4 Circuits

2.4 Circuits - series

2.4 Circuits - Series

• All components are in the same loop, end to end.
• There is only one way the current can flow
• Same current throughout the entire circuit
• Voltage is shared by all components in the circuiekst

2.4 Circuits - Parallel

2.4 Circuits - Parallel

• Multiple loops or paths for the current to flow through
• Currents is divided through every pathway
• Voltage is the same for all components

-Voltage same for all components

-Current is divided

-Current only divides equally if components are the same

Kwizl

Go to Kwizl and start with:  

• YR2_T2_Circuits simulation part 1

Homework

• Finish the exercises of Topic 2.4 
  
• Study the glossary of Topic 2.4 on StudyGo.