less, because energy is conserved and if it experiences more gravity when it is closer to the Sun, its momentum must be lower.

greater, because it is closer to the Sun and will experience a greater gravitational attraction to the Sun.

the same, because angular momentum is the same along all points in Earth’s orbit.

greater, because its orbital speed is higher when it is closer to the Sun.

less, because it will travel slower when it is closer to the Sun.

the same, because Earth’s orbit is circular and its distance from the Sun doesn’t change.