Electric Charges and Ecosystems Quiz

Types of Charges

• Charges can be positive or negative.
• Like charges repel each other; unlike charges attract.

Law of Electric Charges

• Charges exert forces on each other.
• Coulombs' law describes this force between charges.
• Force is proportional to the product of the charges and inversely proportional to the square of the distance between them.

Producers and Consumers

• Producers create their own food (e.g., plants through photosynthesis).
• Consumers obtain energy by consuming other organisms.

Abiotic and Biotic Factors

• Abiotic factors are non-living components of an ecosystem (e.g., sunlight, water, temperature).
• Biotic factors are living components of an ecosystem (e.g., plants, animals, bacteria).

Physical Properties

• Physical properties describe the characteristics of a substance without changing its chemical composition (e.g., density, melting point, boiling point).
• These properties can be observed or measured.

Elements/Periodic Table

• Elements are pure substances made of one type of atom.
• The periodic table organizes elements by their atomic number and properties.
• Elements have specific atomic numbers and symbols.

Bohr-Rutherford Diagrams

• Visual representations of atom structure.
• Show the arrangement of protons, neutrons, and electrons.
• Electrons orbit the nucleus.

Ohm's Law

• Relates voltage, current, and resistance in an electrical circuit.
• Voltage = Current x Resistance (V=IR)

Population States

• Populations can increase, decrease, or remain stable in size.
• Factors influencing population size include birth rate, death rate, immigration, and emigration.

Definition of Ecology

• Ecology is the study of the relationships between organisms and their environment.
• It examines interactions between organisms and their surroundings

Change in Matter

• Matter can undergo physical or chemical changes.
• Physical changes alter the appearance of matter without changing its chemical composition.
• During chemical changes, new substances are formed with different properties than the original substances.

Test your knowledge on electric charges, ecosystem dynamics, and physical properties. This quiz covers the concepts of electric charges, producers and consumers in ecosystems, abiotic and biotic factors, and physical properties of substances. Dive into the interplay between these scientific concepts and enhance your understanding!