Non-magnetic materlas
Is this object made of non-magnetic materials?
A cinder block
Yes, a cinder block is made of non-magnetic materials.
What is the difference between a magnet and an electromagnet?
a) A magnet attracts ferromagnetic objects, while an electromagnet acts like a magnet with all types of objects.
b) A magnet attracts ferromagnetic objects, while an electromagnet acts like a magnet only when an electric current flows through it.
c) A magnet attracts all types of objects, and an electromagnet acts in the same way.
b) A magnet attracts ferromagnetic objects, while an electromagnet acts like a magnet only when an electric current flows through it.
In each of the following situations, is there attraction, repulsion or neither attraction nor repulsion?
North side of a magnet touching the south side of another magnet.
Attraction
Is this object made of non-magnetic materials?
An old iron key
No, an old iron key is not made up of non-magnetic materials.
Which of the following components can be found in an electromagnet?
a) An electrical wire b) A ferromagnetic object
c) A bar magnet d) A source of electric current
e) An iron cylinder f) A plastic cylinder
a) An electrical wire
d) A source of electric current
e) An iron cylinder
In each of the following situations, is there attraction, repulsion or neither attraction nor repulsion?
North side of a magnet touching a piece of wood.
Neither attraction nor repulsion.
Is this object made of non-magnetic materials?
A plastic brick
Yes, a plastic brick is made of non-magnetic materials.
Which of the following objects depend on an electromagnet to work?
a) A trumpet b) The motor in a hair dryer
c) A compass d) A magnetic crane
e) A fire door f) A bicycle
b) The motor in a hair dryer
d) A magnetic crane
e) A fire door
In each of the following situations, is there attraction, repulsion or neither attraction nor repulsion?
North side of a magnet touching the north side of another magnet.
Repulsion
Is this object made of non-magnetic materials?
A stainless steel screw
No, a stainless steel screw is not made of non-magnetic materials.
Write whether the electromagnets below are weaker or more powerful. Look at the board
Double one is more powerful.
Single one is weaker.
In each of the following situations, is there attraction, repulsion or neither attraction nor repulsion?
North side of a magnet touching paperclips.
Attraction
Is this object made of non-magnetic materials?
A ceramic cup
Yes, a ceramic cup is made of non-magnetic materials.
Oscar dropped about a hundred staples on the floor. If Oscar uses a magnet, will he be able to pick up more than one staple at a time? Explain your answer.
Yes, he will. Staples are ferromagnetic objects. When a staple becomes stuck to the magnet, the staple itself can then attract other staples