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C 11 Forces
Terms in this set (20)
the constant velocity of a falling object when the force of air resistance is equal in magnitude and opposite in direction to the force of gravity
What is terminal velocity?
increases as mass increases decrease as distance increases
What is gravitational force?
mass and distance The force of attraction between 2 objects that have a mass
What factors affect it?
1.) every object will remain at rest or in uniform motion in a straight line unless compelled
2.) Unbalanced force acting on an object equals the object mass * acc.
3.) For every action in nature there is an equal and opposite reaction
State Newtons Laws
The quanity defined as the product of the mass, and velocity of an object
What is momentum?
Force, mass and velocity
What things affect momentum
The tendency of an object to resist a change in motion
What is inertia?
What determines how much inertia an object has
the curved path that an object follows when thrown, launched, or otherwise projected near the surface of Earth
What is projectile motion
shape= horizontal + vertical
What shape does the path of it take
The curved path of a celestial object or spacecraft around a star, planet or moon
What is an orbit?
the motion of a body when only the force of gravity is acting on the body
What is free fall?
They are falling under the sole influence of gravity
Why do objects near earth surface fall a the same time
the quanity of matter contained by it
Matter that is contained in an object
What is the difference between weight and mass
there will be changed
What occurs when forces are balanced?
Forces that cause a change in the motion of an object
How about when unbalanced
The forces are balanced so it falls at constant speed
How does an object reach terminal energy? What happens to it when it reaches terminal velocity?
Moving horizontal at a speed to move away at the same rate it falls.
How does an orbital relate to projectile motion?
9.81 m/s near the earths surface
What happens to a force during freefall?
Forces that are equal in size and shape
- both occur at the same time
- Act on 2 objects not just one
What is meant by the terms of interaction pairs/action-reaction pairs
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