Lesson 1 — Electricity Recap

• Physics
• Middelbare school
• vwo
• Leerjaar 3

Electricity recap

This lesson

• Overview Period 3
  
•  learning activity: making connections — Recap electricity
• Physical quantities and units
• Reading paragraph 5.2

Overview Period 3

Course material:

Chapter 5 — Circuits

Chapter 4 — Force and motion

There will be a practical

You will be provided with a planner for the period next week. This will also contain:

•  The homework exercises
• The learning goals

Question 1)

Describe the connections between...

• Positive charge
• Negative charge
• Electrically neutral
• Repulsion
• Attraction
• Protons
• Electrons
• Neutrons
• Free electrons

Question 2)

Explain the phenomena of electric repulsion and attraction  using the concepts on the left.

Do:

• Exercise 7
  
• Bonus - Exercise 10
  

Question 1)

Describe the connections between...

• Voltage
• Charge difference
• Positive charge
• Negative charge
• Protons
• Electrons

Bonus...

• Current
• Resistance

Question 2)

One battery has a potential difference (a voltage) of 3 volts. Another one has a potential difference of 6 volts. What can you say about the difference between positive and negative poles of those two batteries?

Do:

• Exercise 9
• What does it mean when a battery is 'flat' in terms of charge difference between the two poles of the battery?

Phet simulation

Question 1)

Describe the connections between...

• Charge
• Current
• time
• Coulombs
• Electrons
• Ampere
• Seconds
• The number: 6.2 • 10¹⁸
• Metal
• Free electrons

Question 2)

A current of 1 ampere flows through a lamp.

a) How many coulombs go through the wire of this lamp in 10 second?

b) What is the unit of charge? 

c) How many electrons go through in those 10 seconds?

Do:

• Exercise 11

Physical quantity	Symbol	Unit (in words)	Symbol for unit
Current
time
Temperature
Charge
Voltage
speed

Physical quantity	Symbol	Unit (in words)	Symbol for unit
Current	I	Ampere	A
time	t	seconds	s
Temperature	T	degree celsius	ºC
Charge	Q	Coulombs	C
Voltage	U	volts	v
speed	v	meters per second	m/s
Volume	V	cubic meters	m 3

Read paragraph 5.2

Homework: 

Exercise 10 and 11