Peet JH Semester Exam REVIEW - FALL 2024

Front

What is a solute?

Back

A solute is a substance that is dissolved in a solvent to form a solution. In a mixture of vinegar and water, the solute is the substance present in a smaller amount.

Front

What happens when you add a smaller amount of solute to a larger amount of solvent?

Back

The solute dissolves in the solvent, creating a solution where the solute is uniformly distributed.

Front

What does a distance-time graph represent?

Back

A distance-time graph shows the relationship between distance traveled and time taken, indicating speed and motion.

Front

What does it mean when a segment on a distance-time graph is horizontal?

Back

A horizontal segment indicates that the object is not moving (stopped) during that time interval.

Front

What are trophic levels in an ecosystem?

Back

Trophic levels represent the hierarchical positions of organisms in a food chain, based on their feeding relationships.

Front

What do organisms at trophic level 3 primarily consume?

Back

Organisms at trophic level 3, which are secondary consumers, primarily consume herbivores (organisms at trophic level 2).

Front

How do you determine the concentration of a solution?

Back

Concentration is determined by the amount of solute present in a given volume of solvent, often expressed in mg/mL.

Front

Which solution is more concentrated: 100 mL of water with 50 mg of salt or 100 mL of water with 100 mg of salt?

Back

100 mL of water with 100 mg of salt is more concentrated because it has a higher amount of solute in the same volume of solvent.

Front

What is thermal conductivity?

Back

Thermal conductivity is the property of a material to conduct heat. Materials with high thermal conductivity transfer heat efficiently.

Front

Which material is a poor conductor of heat?

Back

Wood is a poor conductor of heat compared to metals like aluminum and copper.