Science

2. the maximum velocity of a falling object. Occurs when the downward force of gravity is equal to the upward force of fluid friction
6. friction occurs when one surface is rolling over another solid surface
7. strongest type of friction, occurs when a stationary object is on a surface
9. the property of a moving object that makes it hard to stop. Calculated by multiplying mass times velocity
11. for every action there is an equal, but opposite reaction
15. change in velocity (speed and/or direction)
16. a force that opposes motion
18. on Earth it is equal to 9.8 m/s2
19. force of attraction between two objects that have mass, strength depends on distance between and the mass of the objects
20. acceleration of an object depends on the force acting on it, as well as the object’s mass
21. SI unit of force and weight

1. Movement of an object on a curved path towards the ground
3. unbalanced forces because they act upon different objects
4. a specific type of fluid friction occurring between an object moving through air
5. type of friction that occurs between fluids and solids. Air resistance is a form of fluid friction
8. the total amount of momentum before a collision will be equal to the total amount of momentum after the collision. Momentum is never lost, only transferred from one object to another
10. a measurement of the force of gravity pulling on an object.
11. Force: Overall force acting on an object, a combination of individual forces
12. type of friction that occurs when two surfaces are sliding past each other
13. a measurement that has both a size/magnitude component and direction
14. the tendency of an object to resist a change in motion
16. push or pull acting on an object
17. an object at rest will remain at rest, and an object in motion will remain in motion, unless acted upon by an outside force. Sometimes called the Law of Inertia