Physical Science

12345678910111213141516171819202122232425262728293031
Across
  1. 2. A type of friction that acts against the motion of an object moving through air.
  2. 6. For every action, there is an equal and opposite reaction.
  3. 7. Speed with a specific direction
  4. 9. A condition where no support force is acting on a body; it feels like there is no gravity, even if gravity is still present.
  5. 11. The rate at which an object's velocity changes over time; it can be an increase or decrease in speed or a change in direction.
  6. 14. The tendency of an object to resist changes in its motion; directly related to mass.
  7. 15. law stating that a physical quantity decreases in proportion to the square of the distance from the source.
  8. 17. The two forces involved in an interaction, as stated in Newton’s third law: for every action, there is an equal and opposite reaction.
  9. 23. An arrow used to show both the magnitude and direction of a quantity.
  10. 24. Like terminal speed, but includes the direction of motion
  11. 26. The amount of space an object occupies.
  12. 28. Every object in the universe attracts every other object with a force that depends on their masses and the distance between them.
  13. 30. The total time an object stays in the air after being launched or jumped.
  14. 31. The acceleration of an object depends on the net force acting on it and its mass
Down
  1. 1. A push or pull acting on an object, measured in newtons.
  2. 3. The upward force that balances the weight of an object resting on a surface.
  3. 4. The curved path followed by an object under the influence of gravity Satellite= An objectthat orbits another object in space due to gravity.
  4. 5. An object at rest stays at rest, and an object in motion stays in motion at constant velocity unless acted on by a net force.
  5. 8. rule A state where the sum of all forces acting on an object is zero, meaning the object is either at rest or moving at a constant velocity.
  6. 10. The minimum speed needed for an object to break free from a planet’s gravitational pull without falling back.
  7. 12. Motion under the influence of gravity only, with no air resistance.
  8. 13. A mutual action between objects where each exerts a force on the other.
  9. 16. The force that an object exerts on a supporting sur-face (or, if suspended, on a supporting string), which is often, but not always, due to the force of gravity.
  10. 18. The unit of force in the metric system.
  11. 19. The constant speed an object reaches when air resistance balances the force of gravity during free fall.
  12. 20. A force that opposes the motion of an object when it is in contact with another surface.
  13. 21. Any object that moves through the air or through space under the influence of gravity.
  14. 22. The amount of matter in an object; a measure of its inertia; not the same as weight.
  15. 25. A measurement that includes both size (magnitude) and direction Velocity= Speed with a specific direction
  16. 27. The total force acting on an object after all individual forces are combined.
  17. 29. An oval-shaped path; the shape of the orbits of planets and satellites under gravity.