Magnetism
What is magnetism?
a forced produced by magnets that pulls some metals
What is a solute?
Something that dissolves.
What is electrical conductivity?
A measure of how well electricity can move through a material.
What is thermal conductivity?
Energy of moving particles
Name 2 examples good electrical insulators.
Possible answers: Wood, Glass, rubber, plastic
Name the metals that can be attracted by a magnet.
iron, nickel, cobalt
What is a solvent?
The substance that is doing the dissolving; the one that dissolves the solute.
What do electrical conductors do with electricity?
It allows electricity to flow easily.
Possible answers: copper, aluminum, iron
Define boiling point.
The temperature at which a substance will boil.
What material(s) would not attract magnets. Name at least 2.
Possible answers: wood, plastic, rubber, cloth
What is saturation?
The point at which the solute will no longer dissolve in the solvent.
What do electrical insulators do to electricity?
The material slows or stops the flow of electricity
What are good thermal insulators? Name 2.
Possible answers: cloth, wood, and rubber
What is the boiling point of water?
100 degrees Celsius
Which parts of the magnet are strongest?
the poles
20% alcohol is dissolved in 80% water to form a solution. Which is the solute in this solution?
the alcohol
Name 2 examples of electrical conductors.
Possible answers. Copper, Gold, Iron, Silver, etc. basically any metal
Why are pots made of iron?
Iron is a good thermal conductor and heats the iron heats the pot which heats the food.
Why would plastic coating be on wires?
To help prevent electrical shocks when someone touches it.
When a bar magnet is broken in half, what is the result?
two new poles are created
Jessica made a pitcher of lemonade. What can she do to dilute if she thinks it doesn't taste right?
add more water aka more solvent
What pair of objects would be good electrical conductors? Why?
a) cork and eraser b) paper and washer c)paper clip and nail d) plastic button and foil
C) paper clip and nail
Why would someone use cloth pot holders to grab food?
Cloth is a good insulator and the person holding the pot wouldn't get their hands burnt.
What property is affected by electrical insulators?
a) hardness b) conductivity c)magnetism d)texture
B) Conductivity