Across
- 2. downward movement under the force of gravity only.
- 5. an influence tending to change the motion of a body or produce motion or stress in a stationary body. The magnitude of such an influence is often calculated by multiplying the mass of the body by its acceleration.
- 6. the longitudinal retarding force exerted by air or other fluid surrounding a moving object.
- 8. a force that acts between moving surfaces
- 9. an amount of space between two things or people.
- 10. the quantity of matter which a body contains, as measured by its acceleration under a given force or by the force exerted on it by a gravitational field.
Down
- 1. the frictional force resists force that is applied to an object, and the object remains at rest until the force of static friction is overcome.
- 3. the force that attracts a body toward the center of the earth, or toward any other physical body having mass.
- 4. the curved path of a celestial object or spacecraft around a star, planet, or moon, especially a periodic elliptical revolution.
- 7. a property of matter by which it continues in its existing state of rest or uniform motion in a straight line, unless that state is changed by an external force.