MOY Most Missed Questions

Front

What happens to a spring's potential and kinetic energy when it is stretched and released?

Back

The potential energy increases until the spring reaches its maximum stretch, then it decreases as kinetic energy increases.

Front

What is a mixture?

Back

A combination of two or more substances where each retains its own properties.

Front

What indicates a chemical change has occurred?

Back

Signs include color change, gas production (bubbles), and temperature change.

Front

What is potential energy?

Back

The energy stored in an object due to its position or state.

Front

What is kinetic energy?

Back

The energy an object possesses due to its motion.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance but not its chemical composition, while a chemical change results in the formation of new substances.

Front

What is an example of a physical change?

Back

Melting ice is a physical change; the ice changes state but remains water.

Front

What is an example of a chemical change?

Back

Burning wood is a chemical change; it transforms into ash and gases.

Front

What does it mean for substances in a mixture to preserve their own properties?

Back

It means that each substance in the mixture retains its individual characteristics and can be separated by physical means.

Front

What is electrical energy?

Back

Energy caused by the movement of electrons, often used to power devices.