1st Semester Final Review

Front

What happens to the strength of gravity between two objects if they are moved farther apart?

Back

The strength of gravity will decrease.

Front

What is the physical property of a substance that describes the temperature at which it begins to transform into a gas?

Back

Boiling point.

Front

What is the type of ion that has gained at least one electron and has a negative charge?

Back

Anion.

Front

What is a characteristic of a material that can be observed as it changes into another substance?

Back

Chemical property.

Front

What is the constant value of the strength of gravity (g) on Earth?

Back

9.8 m/s².

Front

What is the definition of mass?

Back

Mass is the amount of matter in an object, typically measured in kilograms.

Front

What is weight and how is it calculated?

Back

Weight is the force exerted by gravity on an object, calculated as weight = mass × gravity (w = mg).

Front

What is the difference between mass and weight?

Back

Mass is a measure of matter, while weight is the force of gravity acting on that mass.

Front

What is a chemical property?

Back

A characteristic of a substance that describes its ability to change into different substances.

Front

What is an example of a physical change?

Back

Melting ice is an example of a physical change.