Title: true and false
Course: Physics copy 1

Q: The sum of the focal radii is constant.
- True
- False
A: True

Q: The difference of the focal radii is constant.
- True
- False
A: False

Q: Planets near the centre of the solar system move faster than planets farther away.
- True
- False
A: True

Q: Planets with larger orbital radii have larger orbital velocities
- True
- False
A: False

Q: A planets period varies inversely with its distance from the centre of the solar system
- True
- False
A: False

Q: Arcs of equal AREA are covered in equal amounts of time
- True
- False
A: True

Q: Arcs of equal LENGTH are covered in equal amounts of time.
- True
- False
A: False

Q: The eccentricity of an orbit changes its period.
- True
- False
A: False

Q: For orbits with eccentricities of zero, the semi-major and semi-minor axes are equal length.
- True
- False
A: True

Q: For orbits with non-zero eccentricities, the planetary velocity is constant.
- True
- False
A: False

Q: Period is directly proportional to the length of the semi-major axes
- True
- False
A: False

Q: Period is proportional to the square of the semi-major axes.
- True
- False
A: False