Magnets Bellwork

Who discovered the magnet?

• Albert Einstein

• Thomas Alva Edison

• A sheperd named Magnus

• Isaac Newton

Name the country in magnets were discovered.

• Italy

• Africa

• USA

• Greece

When was magnetite discovered?

• 2000

• 1986

• 365 AD

• 800 BC

What is magnetite called now?

• Magnetic materials

• Non - magnetic materials

• Magnus materials

• Magnets

Select the correct options which gives the correct definition of "what are magnetic materials" ?

• Substances which are not attracted by magnet are called magnetic substances

• Materials which get attracted by the magnet are called magnetic materials

• Paper is attracted by magnets

• Properties of magnets can't be destroyed by hammering or throwing at a certain height. It is certainly safe to do these activities.

Which of the following substances are non - magnetic objects?

• Iron

• Nickel

• Cobalt

• Rubber

How many poles are there in a magnet?

• Five poles (5)

• Three poles (3)

• Ten poles (10)

• Two poles (2)

What are the properties of a magnet?

1.It attracts iron pieces towards itself.

2. It is stronger when hammered with a lot of strength

3. It always aligns itself in the same direction, if left to rotate freely.

4. Magnets are made partly from plastic

• Only option 1 is correct

• Only option 2 is correct and 1,3 and 4 options are incorrect

• Only option 1 and 3 is correct and 2 and 4 are incorrect

• Only option 2 and 4 is correct and 1 and 3 are incorrect

What type of a magnet does the above picture show?

• Horse shoe magnet

• Normal magnet

• Cylindrical magnet

• Ball ended magnet

Name two magnetic materials

• Gold and Silver

• Iron and Cobalt

• Rubber and Plastic

• Silk and Jute

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5