Across
- 4. an object at rest will stay at rest and an object in motion will stay in motion with the same speed and direction unless acted upon by unbalanced external force.
- 6. F = ma, or net force is equal to mass times acceleration.
- 7. for every action (force) in nature there is an equal and opposite reaction.
- 8. steady speed achieved by an object freely falling through a gas or liquid.
- 9. the force on an object on a circular path that keeps the object moving on the path.
- 12. a property of matter by which it remains at rest or in unchanging motion unless acted on by some external force.
Down
- 1. the total momentum of two or more bodies acting upon each other remains constant unless an external force is applied.
- 2. the force that acts in the opposite direction to an object moving through the air. It is also known as "drag."
- 3. The force that resists the sliding or rolling of one solid object over another.
- 5. the motion of an object where gravity is the only force acting upon it.
- 10. The universal force of attraction acting between all matter.
- 11. An external effort in the form of a push or pull which tries to move an object.