24-25: Interpreting Properties

Front

What is thermal conductivity?

Back

Thermal conductivity is the ability of a material to conduct heat. Materials with high thermal conductivity, like metals, transfer heat quickly, while those with low thermal conductivity, like rubber, do not.

Front

Why is aluminum not a good choice for a cup sleeve for hot liquids?

Back

Aluminum is a good thermal conductor, meaning it allows heat to pass through easily, which would make the sleeve feel hot.

Front

What are the common properties of metals?

Back

Metals are typically solid at room temperature, have high density, conduct heat and electricity well, and are malleable and ductile.

Front

What does it mean for a material to be insulative?

Back

An insulative material is one that does not conduct heat well, helping to keep heat contained. Examples include rubber and plastic.

Front

What is the significance of an object's density in identifying it as a metal?

Back

Density can help identify metals because most metals are denser than water, meaning they will sink when placed in water.

Front

What is the state of matter?

Back

The state of matter refers to the distinct forms that different phases of matter take on, primarily solid, liquid, and gas.

Front

What is magnetism?

Back

Magnetism is a physical phenomenon produced by the motion of electric charge, which results in attractive and repulsive forces between objects.

Front

How can electrical conductivity be used to classify materials?

Back

Electrical conductivity measures how well a material can conduct electricity. Metals are generally good conductors, while non-metals are poor conductors.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.

Front

What is an example of a material that is a good insulator?

Back

Rubber is a good insulator because it does not conduct heat well, making it suitable for use in heat-resistant applications.