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balance
Definition
Balance is the state of being evenly distributed or having equal weight on opposite sides. It can also refer to the ability to maintain equilibrium or to keep something from falling over.
In science, balance is often used to describe the forces that act on an object. For example, the force of gravity pulls an object down, while the force of the ground pushes the object up. These two forces are balanced when the object is not moving.
Balance is also important for living things. The human body is balanced by a system of muscles, bones, and ligaments. This system allows us to move and to maintain our posture.
How can the word be used?
The scale showed that the two weights were in balance.
Different forms of the word
Noun:
balance (the state of being equal in weight, amount, or force).
balance (a weighing instrument).
balance (a state of equilibrium).
balance (a mental state of composure or stability).
Adjective:
balanced (having a state of equilibrium).
balanced (having a mental state of composure or stability).
Verb:
balance (to bring into a state of equilibrium).
balance (to keep something in a state of equilibrium).
balance (to compare two things to see if they are equal).
balance (to keep something in the middle).
Etymology
The word "balance" has a long and interesting etymology. It comes from the Old French word "balancer", which means "to weigh". The word "balancer" is derived from the Latin word "balteus", which means "belt".
Question
What does balanced mean?
AQA Science Exam Question and Answer
Question:
Define the term "balance" in the context of physics. Explain the concept of equilibrium and how it relates to the idea of balance. Provide an example of a balanced object or system.
Answer:
In the context of physics, "balance" refers to a state in which all forces acting on an object or system are equal and opposite, resulting in a stable condition with no net force or acceleration. This state of balance is also known as "equilibrium."
Equilibrium is achieved when the sum of all forces (including both magnitude and direction) acting on an object or system is zero. This means that the object or system is not accelerating and remains at rest or moves at a constant velocity.
An example of a balanced object is a book resting on a flat table. The force of gravity pulling the book downward is balanced by the upward normal force exerted by the table, resulting in no net force acting on the book. Therefore, the book remains in a state of equilibrium and does not move unless an external force is applied.