PS EXAM sem 1 24

Front

Why does a penny sink in water?

Back

Pennies are more dense than water.

Front

What is a physical property of matter?

Back

Density is a physical property of matter.

Front

What is a neutron?

Back

A neutron is a subatomic particle found in the nucleus of an atom, with no electric charge.

Front

What phase of matter exists in part D of the graph?

Back

Liquid is the phase of matter in part D of the graph.

Front

What tool is used to measure the volume of a liquid?

Back

A graduated cylinder is used to measure the volume of a liquid.

Front

What is density?

Back

Density is the mass of an object divided by its volume.

Front

What is the difference between physical and chemical properties?

Back

Physical properties can be observed without changing the substance, while chemical properties describe how a substance reacts.

Front

What is the formula for calculating density?

Back

Density = Mass / Volume.

Front

What are the three main states of matter?

Back

Solid, liquid, and gas are the three main states of matter.

Front

What is the boiling point of water?

Back

The boiling point of water is 100 degrees Celsius at standard atmospheric pressure.