Here are the correct answers to the questions based on your descriptions:
Question 5: Kepler's Second Law states
Answer: a) The area swept out by an orbiting object must be the same for the same time period at any point of the orbital path.
Question 6: What is gravity?
Answer: d) A force of attraction between all objects in the universe that have mass.
Question 7: According to Kepler's Laws, what is the shape/orientation of orbiting objects in the Solar System?
Answer: d) The orbits are elliptical in shape with the Sun as one of the foci of the ellipse.
Question 8: Copernicus first proposed the heliocentric theory of the Solar System. What does the heliocentric model describe about the Solar System?
Answer: c) The heliocentric theory states that the Sun is the center of the Solar System.