6ºA & 6ºB - NATURAL SCIENCE - Answers: exerice 1 (p. 100); exercise 6 (p.101), exercise 4. Friday 8th of May, 2020
Dear students;
I upload the solutions of the different activites:
Exercise 1 (p.100). Correct the false statements in your notebook.
a) The link between electricity and magnetism was discovered by Faraday.
False: The link between electricity and magnetism was discovered by Oersted
b) Ampere discovered the electron, but he called it the electrodynamic molecule.
True.
c) Electromagnets can’t be switched off.
False: Electromagnets can be switched off.
d) The north poles of two bar magnets attract each other.
False: The north poles of two bar magnets repel each other.
e) Electric current produces a magnetic field when it flows through a wire.
True.
f) The Earth’s magnetic field protects the Earth from solar radiation.
True.
Exercise 6 (p.101). Copy and complete the sentences.
a) The north pole of a permanent magnet attracts the south pole of another permanent magnet.
b) Opposite poles attract, whereas alike poles repel.
c) The magnetosphere is the magnetic field around the Earth.
d) The magnetosphere protects us from harmful/dangerous solar radiation.
e) Magnets attract magnetic materials, for example iron or steel.
Exercise 4 (worksheet).
