To minimize fuel consumption

To maximize mission duration

To achieve a desired orbit or trajectory

To minimize time of flight

An elliptical orbit used to transfer between two circular orbits

A circular orbit used to transfer between two elliptical orbits

An elliptical orbit used to transfer between two hyperbolic orbits

A hyperbolic orbit used to transfer between two circular orbits

To increase the spacecraft's velocity

To decrease the spacecraft's velocity

To change the spacecraft's direction of travel

To all of the above

A geocentric transfer orbit is used to transfer between two Earth orbits, while a heliocentric transfer orbit is used to transfer between two orbits around the Sun.

A geocentric transfer orbit is used to transfer between two orbits around the Sun, while a heliocentric transfer orbit is used to transfer between two Earth orbits.

A geocentric transfer orbit is used to transfer between two orbits around the Moon, while a heliocentric transfer orbit is used to transfer between two orbits around the Sun.

A geocentric transfer orbit is used to transfer between two orbits around the Sun, while a heliocentric transfer orbit is used to transfer between two orbits around the Moon.

A method for determining the trajectory of a spacecraft given its initial and final conditions

A method for determining the fuel consumption of a spacecraft given its trajectory

A method for determining the time of flight of a spacecraft given its trajectory

A method for determining the orbit of a spacecraft given its trajectory

A method for approximating the trajectory of a spacecraft by dividing it into a series of conic sections

A method for approximating the fuel consumption of a spacecraft by dividing its trajectory into a series of conic sections

A method for approximating the time of flight of a spacecraft by dividing its trajectory into a series of conic sections

A method for approximating the orbit of a spacecraft by dividing its trajectory into a series of conic sections

A ballistic trajectory is a trajectory in which the spacecraft is not under thrust, while a powered trajectory is a trajectory in which the spacecraft is under thrust.

A ballistic trajectory is a trajectory in which the spacecraft is under thrust, while a powered trajectory is a trajectory in which the spacecraft is not under thrust.

A ballistic trajectory is a trajectory in which the spacecraft is in orbit, while a powered trajectory is a trajectory in which the spacecraft is not in orbit.

A ballistic trajectory is a trajectory in which the spacecraft is not in orbit, while a powered trajectory is a trajectory in which the spacecraft is in orbit.

$Delta v = V_e * ln(m_0/m_f)$

$Delta v = V_e * ln(m_f/m_0)$

$Delta v = V_e * (m_0/m_f)$

$Delta v = V_e * (m_f/m_0)$

The increase in the specific energy of a spacecraft due to a burn at high velocity

The increase in the specific energy of a spacecraft due to a burn at low velocity

The decrease in the specific energy of a spacecraft due to a burn at high velocity

The decrease in the specific energy of a spacecraft due to a burn at low velocity

A Hohmann transfer orbit is a single elliptical orbit, while a bi-elliptic transfer orbit is a combination of two elliptical orbits.

A Hohmann transfer orbit is a combination of two elliptical orbits, while a bi-elliptic transfer orbit is a single elliptical orbit.

A Hohmann transfer orbit is used to transfer between two circular orbits, while a bi-elliptic transfer orbit is used to transfer between two elliptical orbits.

A Hohmann transfer orbit is used to transfer between two elliptical orbits, while a bi-elliptic transfer orbit is used to transfer between two circular orbits.

To adjust the spacecraft's position in its orbit

To adjust the spacecraft's velocity in its orbit

To adjust the spacecraft's inclination in its orbit

To all of the above

A rendezvous is when two spacecraft come close to each other, while a docking is when two spacecraft physically connect to each other.

A rendezvous is when two spacecraft physically connect to each other, while a docking is when two spacecraft come close to each other.

A rendezvous is when two spacecraft come close to each other in orbit, while a docking is when two spacecraft come close to each other on the surface of a planet or moon.

A rendezvous is when two spacecraft come close to each other on the surface of a planet or moon, while a docking is when two spacecraft come close to each other in orbit.

To reduce the spacecraft's velocity in order to enter a lower orbit

To increase the spacecraft's velocity in order to enter a higher orbit

To change the spacecraft's inclination

To change the spacecraft's argument of perigee

To change the spacecraft's inclination

To change the spacecraft's argument of perigee

To change the spacecraft's longitude of ascending node

To change the spacecraft's true anomaly