Physical Sciences Final

Front

What is the balanced chemical equation for the formation of sodium oxide from sodium and oxygen?

Back

The balanced equation is 4 Na + O2 -> 2 Na2O.

Front

What does the period of a wave represent?

Back

The period of a wave is the time it takes for one complete cycle of the wave to pass a given point.

Front

What are the two types of nuclear reactions that produce energy?

Back

Fission and fusion are the two types of nuclear reactions that produce energy.

Front

What is the pH range suitable for growing blueberries?

Back

Blueberries thrive in soil with a pH between 4.0 and 6.0.

Front

How is mass defined in physics?

Back

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

Front

How is weight defined in physics?

Back

Weight is the force exerted by gravity on an object, calculated as mass times the acceleration due to gravity (W = mg).

Front

What is the difference between mass and weight?

Back

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

Front

What is the formula for calculating density?

Back

Density is calculated using the formula: Density = Mass/Volume.

Front

What is the principle of conservation of mass?

Back

The principle of conservation of mass states that mass cannot be created or destroyed in a chemical reaction.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of only one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.