Across
- 4. is a force that is opposite of motion between two surfaces that are touching causing it to slow down. A frictionless surface will not affect motion.
- 9. net force greater than zeros that cause changes in motion of an object in the direction of the greater force
- 11. Energy of objects in motion.
- 12. is the rate at which velocity changes (speed or direction) over time as a result of unbalanced forces and mass of the object.
- 16. Newton’s Third Law states that all forces occur in contact pairs where every action force has a reaction force that is equal in strength and opposite in direction.
- 19. is total distance traveled divided by total amount of time
- 20. three principles that explain the relationship between an object's motion and the forces applied to it; at least two laws always apply
- 23. support force of a surface an object is in contact with preventing it from falling
- 24. ________________________ Period:n ____
Down
- 1. Newton’s Second Law of motion states that the acceleration of an object depends on its mass and the amount of force applied where F = ma, objects accelerate in the direction of the unbalanced force. Acceleration is proportional to force but inverse to mass
- 2. change in an object's position or location.
- 3. is the sum of all forces acting on an object within a system, includes both magnitude (strength) and direction
- 5. a force acting directly in contact with an object
- 6. is speed in a given direction
- 7. is speed that is steady or unchanging
- 8. gravity is the pull toward another object based on its mass. Gravity is constant meaning it is always pulling objects down at 9.8m/s2
- 10. unit of measurement of force
- 13. stored energy of an object due to position, condition, or composition (ex: chemical energy can be food, propane gas, or batteries)
- 14. Newton’s First Law states that an object's motion will not change unless an unbalanced force acts on it. Meaning if an object is moving it stays moving at the same speed and direction until forced to change.
- 15. is the tendency of all objects to resist change in motion dependent on mass, to keep doing what they are already doing
- 17. forces acting on an object that cancel each other out causing a net for of zero and causing no change in movement
- 18. is the rate of change at which an object moves a distance over
- 21. group of items interacting to form a unified whole.
- 22. any push or pull between two objects, measured in Newtons (N)