Semester 1 Review

Front

What energy transformations occur when a lamp is plugged into a wall socket?

Back

Electrical → thermal → light

Front

What property of aluminum makes it useful for making soda cans and sheet metal for airplanes?

Back

Aluminum is malleable.

Front

What characteristic of copper makes it suitable for wiring in homes?

Back

Copper is ductile.

Front

How many elements are present in the compound Mg2As3COHNi2?

Back

6

Front

What is the mass of a block of wood if a student measures it to be 148.5 g?

Back

148.5 g

Front

Define 'ductile' in the context of materials.

Back

Ductile materials can be stretched into wires without breaking.

Front

What does 'malleable' mean in terms of metal properties?

Back

Malleable metals can be hammered or rolled into thin sheets.

Front

What is the definition of 'conductive' in relation to metals?

Back

Conductive materials allow electricity to flow through them easily.

Front

Explain the term 'element' in chemistry.

Back

An element is a pure substance that cannot be broken down into simpler substances.

Front

What is the significance of a balance in measuring mass?

Back

A balance measures the mass of an object accurately.