Question

Explain the following:
1)
Copper has a high density.
2)
Copper can be drawn out into long thin wires.
Science
3)
Copper is good conductor of heat.​

Answer 1

Answer:

1) Because metals have high tensile strength

2)Because metals are malleable & ductile

3)Because metals are good conductors of electricity and heat

Answer 2

Explanation:

1)The two blocks below are the same size, but the copper one has a greater mass than the aluminium one. That is because copper has a higher density than aluminium. Density is the mass per unit volume of a substance

2)Copper is a ductile metal. This means that it can easily be shaped into pipes and drawn into wires. Copper pipes are lightweight because they can have thin walls. They don't corrode and they can be bent to fit around corners.

3)Copper is a good conductor of heat. This means that if you heat one end of a piece of copper, the other end will quickly reach the same temperature. Most metals are pretty good conductors; however, apart from silver, copper is the best. ... However, its thermal conductivity is 30 times worse than copper's.