Explanation

Upthrust (or buoyant force) happens only when a body is physically in contact with a liquid.

Electrostatic magnetic force between two magnets, and gravitational forces act at a distance without contact.

Explanation

Benjamin Bloom developed the Bloom's Taxonomy, categorizing learning objectives from simple to complex, progressing from factual knowledge to higher-level conceptual understanding.

His taxonomy is widely used to structure educational goals and assess cognitive learning.

Explanation

Imitation involves copying others and doing as they do.

It refers to replicating actions, behavior, or ideas from others.

Explanation

Operational objectives act as a link between high-level organizational goals (e.g., "Increase market share") and actionable tasks (e.g., "Launch 3 new products this quarter").

They translate vague strategic aims into measurable, time-bound targets for teams/departments.

Explanation

The topic sentence introduces the main idea of the paragraph, setting the direction for the rest of the content.

It is typically the first sentence that outlines the primary point the paragraph will discuss.

Explanation

To divide (2x^3 - 5x^2y + 5xy^2 - 3y^3) by (2x - 3y), let's attempt polynomial long division or factorization if possible.

Given the form of the dividend and divisor, let's try to factor or directly apply division:

(2x^3 - 5x^2y + 5xy^2 - 3y^3) ÷ (2x - 3y)

Upon inspection or performing polynomial division, one notices:

2x^3 - 5x^2y + 5xy^2 - 3y^3 can be factored or divided as follows:

2x^3 - 3x^2y - 2x^2y + 3xy^2 + 2xy^2 - 3y^3

Which can be rearranged and factored:

x^2(2x - 3y) - xy(2x - 3y) + y^2(2x - 3y)

= (2x - 3y)(x^2 - xy + y^2)

Thus, (2x^3 - 5x^2y + 5xy^2 - 3y^3) ÷ (2x - 3y) = x^2 - xy + y^2

Explanation

The correctly rearranged sentence is: "He always does his homework."

This sentence follows the proper word order for English grammar.

Explanation

Elaboration involves connecting new information to existing knowledge to deepen understanding.

It enhances memory retention by creating meaningful associations between ideas.

Explanation

A magnetic compass needle aligns itself with the Earth’s magnetic field.

Therefore, it always points in the North-South direction.

Explanation

In a circle shape arrangement, some students, especially those sitting on the far side, may have difficulty seeing the blackboard or whiteboard.

This limits their ability to engage with visual content presented during the lesson.