First Semester Exam REVIEW Flashcardizz Fall 2024

Front

What factors affect the rate at which a solute dissolves in a solution?

Back

Factors include particle size, stirring, and temperature. Light does NOT affect the rate.

Front

What is the difference between an opinion and an observation?

Back

An observation is a statement based on what can be seen or measured, while an opinion is a personal belief or judgment.

Front

How can you describe the motion of an object?

Back

Motion can be described in terms of movement (up, down, still) and the time intervals during which these movements occur.

Front

What is the unit of measurement for length in the metric system?

Back

Common units include millimeters (mm) and centimeters (cm). 1 cm = 10 mm.

Front

What does it mean for two objects to have the same velocity?

Back

Two objects have the same velocity if they are moving in the same direction at the same speed.

Front

What is the definition of velocity?

Back

Velocity is the speed of an object in a specific direction.

Front

What is the role of temperature in dissolving a solute?

Back

Higher temperatures generally increase the rate at which a solute dissolves.

Front

What is particle size and how does it affect dissolving?

Back

Smaller particles have a larger surface area, which allows them to dissolve faster than larger particles.

Front

What is the significance of stirring in a solution?

Back

Stirring increases the interaction between solute and solvent, speeding up the dissolving process.

Front

What is an example of an observation?

Back

An example of an observation is noting that the sky is blue.