Natural Science CLEP Prep 2025 – 400 Free Practice Questions to Pass the Exam

The gravitational constant, denoted by the symbol G, is a fundamental constant in physics that represents the strength of gravitational interaction between two bodies. It is approximately equal to 6.67 x 10^-11 in SI units. Option A, B, and C are incorrect because they have incorrect powers of 10, making them much larger or smaller than the actual value of the gravitational constant. It is important to pay attention to the exponent of a scientific notation as it determines the magnitude of the number. Therefore, the correct option is D, 6.67 x 10^-11, which is the commonly accepted value for the gravitational constant.