Chapter 4 terms

Question or Hint Answer or Word

The oval path followed by a satellite. ellipse
being without a support force, as in free fall weightless
the speed that a projectile, space probe, or similar object must reach to escape the gravitational influence of Earth or of another celestial body to which it is attracted escape speed
the force that an object exerts on a supporting surface weight
the curved path followed by a projectile under the influence of constant gravity only parabola
a projectile or small celestial body that orbits a larger celestial body satellite
any object that moves through the air or through space under the influence of gravity projectile