18 Questions
What is the equation for kinetic energy?
KE = mu^2/2
What happens to an object's kinetic energy when it accelerates?
It increases
Which of the following objects has potential energy?
An object in a force field
Which of the following statements is true about energy?
Energy can be converted from one form to another
Why do objects tend to move towards lower energy states?
Because lower energy states are more stable
What is the relationship between kinetic energy and potential energy?
An object can have both kinetic energy and potential energy at the same time
What is the definition of matter in chemistry?
Anything that has both mass and volume
What is the science of chemistry concerned with?
The composition, structure, properties, and reactions of matter, and the interaction of matter with energy
What is an example of an aggregate of molecules?
A polymer
What branch of chemistry deals with the study of minerals, rocks, and meteorites?
Geochemistry
What is the term for the types and amounts of simpler substances that make up matter?
Composition
What is the term for the category of matter that includes thick or thin films, alloys, and composite solids?
Materials science
What is a characteristic of a chemical change?
It involves a change in the composition of a substance
What is the primary type of change occurring when frost forms on a humid winter night?
Physical change, as water vapor changes state to solid
Which of the following is an example of energy?
A ball moving across a room
What is the difference between a physical and chemical change?
A physical change involves a change in state, while a chemical change involves a change in composition
Which process is an example of a chemical change?
A silver fork tarnishing slowly in air
What is a characteristic of a physical change?
It is always reversible
This quiz covers the concepts of kinetic and potential energy, including their definitions, formulas, and characteristics. Test your understanding of how energy is related to an object's motion and position in a force field.
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