Question

which statement describes an example of an electrical force? a. when you rub your hands together, they start to feel warm. b. when an apple breaks off of a tree, it falls to the ground. c. positive and negative charges are attracted to one another.

Explanation:

• Option A: Rubbing hands to feel warm is due to friction (conversion of mechanical energy to heat), not electrical force.
• Option B: An apple falling to the ground is due to gravitational force, not electrical force.
• Option C: Electrical force involves the interaction between charged particles. Positive and negative charges attracting each other is a fundamental example of electrical force (Coulomb's law - opposite charges attract).

Answer:

C. Positive and negative charges are attracted to one another.