TAREAS CIENCIAS DE LA NATURALEZA 16-03-2020

We start  Unit 5 “Electricity and Magnetism”.

1. Watch this video about electromagnetism  and learn about the relationship between electricity and magnetism.

2. After watching the video complete these sentences using the words in the box. Copy the sentences in a notebook.

positive              atoms                  electrons                repel                  electric

1. Electromagnetism is a branch of physics that studies the interactions between __________________and magnetic fields.

2. All matter has an electric charge which can be ________________, negative, or neutral.

3. Opposite charges attract while like charges ________________.

4. These electric forces bring and hold __________________ together.
5. And when atoms gain a positive or negative charge through the transfer of ______________ , an electric field will form.

3. Read the text on page 21 and then do the exercises: 
1. a) on page 20.
a) Classify each picture: magnetism or electricity.

Click on the image to enlarge it.

2. on page 20    CLICK to listen to  EX. 2 Page 20. (AUDIO 14) and answer the questions.

4. Study the vocabulary: Electricity and magnetism

electromagnetism = electromagnetismo

needle = aguja
compass = brújula

magnetic force = fuerza magnética
electron = electrón

loop = aro
dynamo = dinamo

iron rod = barra de hierro

bar magnet = imán en barra

poles = polos

iron filings = limadura de hierro

magnetosphere = magnetosfera

solar radiation = radiación solar

thermal energy = energía térmica

chemical reaction = reacción química

electrolysis = electrolisis

electrode = electrodo

electroplating = galvanoplastia

electric bell = timbre eléctrico

maglev = maglev (tren de levitación magnética)

levitate = levitar