Semester 1 Final ES Chapter 2 review

Front

What are the three physical states of matter?

Back

Solid, liquid, and gas.

Front

Does the chemical composition of matter change during a physical change?

Back

No, it remains the same.

Front

What does the second law of thermodynamics state about energy conversion?

Back

We end up with lower-quality or less usable energy than we started with.

Front

Which form of energy is considered low quality?

Back

The heat dispersed in the ocean.

Front

What is a subatomic particle with a negative charge?

Back

Electron.

Front

What is the definition of matter?

Back

Anything that has mass and takes up space.

Front

What is the difference between physical and chemical changes?

Back

Physical changes do not alter the chemical composition, while chemical changes do.

Front

What is an example of a physical change?

Back

Melting ice.

Front

What is an example of a chemical change?

Back

Burning wood.

Front

What is kinetic energy?

Back

The energy of an object in motion.