Question

Electrical as well as gravitational effects can be thought to be caused by fields. Which of the following is true for an electrical and gravitational field ?

• A. Fields are useful for understanding forces acting through a distance.
• B. The field concept is often used to describe contact forces.
• C. There is no way to verify the existence of the force field since it is just a concept.
• D. Gravitational or electrical field does not exist in the space around an object.

Answer 1

The Correct Option is A

Answer: The correct statement is: (A) Fields are useful for understanding forces acting through a distance.

Explanation:

Fields are an essential concept in physics that help describe how forces can act through a distance without direct contact. There are two primary types of fields that describe forces acting at a distance:

• Electric fields: These are created by electric charges and describe the force that a charge exerts on other charges in its vicinity.
• Gravitational fields: These are created by masses and describe the force that a mass exerts on other masses in its vicinity.

Both fields act through space and influence other objects within their reach, which is why we can observe forces at a distance, such as gravitational attraction between planets or the electric force between charged particles.

Therefore, the correct answer is: (A) Fields are useful for understanding forces acting through a distance.