Exploring Science Concepts

What is Newton's First Law of Motion?

• An object in motion will eventually stop without any force acting on it.

• An object will accelerate if no force is applied.

• An object will remain at rest or in uniform motion unless acted upon by an external force.

• An object will change direction only when a force is applied.

How does Newton's Second Law relate force, mass, and acceleration?

• Acceleration is equal to force minus mass (a = F - m).

• Force is equal to acceleration divided by mass (F = a / m).

• Force is equal to mass times acceleration (F = m * a).

• Mass is equal to force times acceleration (m = F * a).

What does Newton's Third Law state about action and reaction?

• For every action, there is an equal and opposite reaction.

• For every action, there is a delayed reaction.

• Every action has no reaction at all.

• For every action, there is a proportional reaction.

What are the main components of a cell?

• Plasma, blood cells, platelets

• Cell membrane, cytoplasm, nucleus, mitochondria, ribosomes, endoplasmic reticulum, Golgi apparatus.

• Nerve endings, synapses, neurotransmitters

• Cell wall, chloroplasts, vacuoles

How do prokaryotic and eukaryotic cells differ?

• Prokaryotic cells have a nucleus, while eukaryotic cells do not.

• Prokaryotic cells lack a nucleus and membrane-bound organelles, while eukaryotic cells have both.

• Prokaryotic cells contain membrane-bound organelles, while eukaryotic cells do not.

• Eukaryotic cells are always smaller than prokaryotic cells.

What is the function of the mitochondria in a cell?

• The function of mitochondria is to produce energy (ATP) for the cell.

• To regulate cell division and growth.

• To synthesize proteins for the cell.

• To store genetic information for the cell.

What is the significance of the cell membrane?

• The cell membrane is primarily responsible for energy production.

• The cell membrane acts as a storage unit for genetic material.

• The cell membrane is significant for regulating substance transport, providing protection, and enabling cell communication.

• The cell membrane is involved in the synthesis of proteins.

What are the trends in atomic radius across the periodic table?

• Atomic radius increases across a period and decreases down a group.

• Atomic radius decreases across a period and increases down a group.

• Atomic radius decreases down a group and increases across a period.

• Atomic radius remains constant across a period and increases down a group.

How does electronegativity change across a period?

• Electronegativity decreases across a period.

• Electronegativity increases across a period.

• Electronegativity fluctuates randomly across a period.

• Electronegativity remains constant across a period.

What is the relationship between ionization energy and atomic size?

• Larger atoms always have higher ionization energy.

• As atomic size decreases, ionization energy increases.

• As atomic size increases, ionization energy decreases.

• Ionization energy has no relation to atomic size.