ASTRODYNAMICS 1ST EDITION BY
DAVID B SPENCER AND DAVIDE
CONTE 2026 ASTRODYNAMICS TEST
PAPER QUESTIONS ANSWERS
GRADED A+
◉ What is the SI unit for gravitational force?
Answer: Newtons (N)
◉ According to Newton, what keeps the Moon in orbit?
Answer: The same gravitational force that pulls objects to the ground on
Earth.
◉ How does mass affect the gravitational pull between two objects?
Answer: The greater the mass, the stronger the gravitational pull.
◉ What is the relationship between distance and gravitational force?
Answer: The farther apart two objects are, the weaker the gravitational
pull.
◉ What is the value of the Universal Gravitation Constant (G)?
Answer: 6.67 × 10−11 N·m²/kg²