First Quarter Exam Reviewer

Which type of scientific model is a scaled-down or scaled-up physical representation of an object or system?

• Conceptual Model

• Mathematical Model

• Physical Model

• Theoretical Model

Which of the following is an example of a conceptual model?

• A globe representing the Earth.

• An equation representing the relationship between force and acceleration.

• A flowchart showing the steps of a chemical reaction.

• A small-scale model of a solar system

A diagram showing the water cycle (evaporation, condensation, precipitation) is an example of what type of model?

• Conceptual Model

• Mathematical Model

• Physical Model

• Theoretical Model

Which of the following scientists is associated with the Billiard Ball model of the atom?

• J.J. Thomson

• Ernest Rutherford

• John Dalton

• Niels Bohr

Which scientist was proposed by the Plum Pudding model of the atom?

• J.J. Thomson

• Ernest Rutherford

• John Dalton

• Niels Bohr

Which model of the atom was first to suggest that the atom has a central nucleus?

• Plum Pudding model

• Billiard Ball model

• Nuclear model

• Electron cloud model

In which model of the atom are electrons described as moving in fixed orbits around the nucleus?

• Plum Pudding model

• Billiard Ball model

• Nuclear model

• Electron cloud model

Which of the following statements is TRUE about models used in science?

• Models are always perfect representations of reality.

• Models never change as our understanding of matter evolves.

• Models can be used to make predictions about the behavior of matter.

• Models are only used in science fiction.

Which of the following states of matter has particles arranged most closely together?

• solid

• liquid

• gas

• all choices mentioned

According to Kinetic Molecular Theory, what happens to the particles in a substance as its temperature increases?

• move faster

• move slower

• stop moving

• no change