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Physics Unit Test Part 2
Terms in this set (35)
The fluid friction experiences by objects falling through air
The overall rate at which an object moves. Total distance/total time
A characteristic to stay random during an experiment
A push or a pull exerted on an object
Law of universal gravitation
An object attracts every other object in the universe using a force that is proportional to the product of their masses and inversely proportional to the square of the distance between them.
The state at which one object's distance from another is changing.
Equal forces acting on an object in opposite directions.
Newton's 2nd law
The force of an object is equal to its mass multiplied by its acceleration. (F=MA)
When all of the individual forces are added up together.
When objects roll over another surface
The amount of matter in an object. In order for an object to have mass, it must take up space.
The measure of the average kinetic energy of the particles in matter. Greatest velocity an object reaches is called its terminal velocity
A distance an object travels per unit of time.
Friction that acts on objects at rest
When an object moves through a fluid, air resistance
When objects slide over one another.
Newton's 3rd law
For every action, there is an equal and opposite reaction.
To resist a change in motion.
An object that is not moving starts to move. An object that is moving changes speed or direction.
A unit of measure that equals the force required to accelerate 1 kilogram of mass at 1 meter per second per second. The SI unit of force. 1 newton= 0.22lbs
The quantity of motion that an object has. Characteristic of a moving object that is related to mass and velocity.
Independent variable= what is changed
Dependent variable= what is measured
Quantities that stay constant during an experiment
A place or object used for comparison to determine if an object is in motion.
The force that pulls objects towards the center of earth or towards another object.
A change in velocity. Decreasing speed, increasing speed or changing direction
Slowing down, negative acceleration
Speed in a given direction
Newton's 1st law
An object at rest will remain at rest, an object in motion will remain in motion until acted upon by an unbalanced force.
The variable that is changed.
The variable that responds or is measured.
Law of conservation of momentum
Conservation-conditions before and after an event. An amount that is conserved is the same amount after an event as it was before. Momentum is conserved when objects collide. Momentum may be transferred from one object to another, but none is lost. The momentum of an object is conserved unless acted on by an outside force. The law states that the total momentum of objects that interact does not change.
The force that one surface exerts on another when 2 surfaces rub against each other. Friction will slow down an object.
Anything that has mass and takes up space.
The force of gravity on an object at the surface of a planet.
THIS SET IS OFTEN IN FOLDERS WITH...
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BYU Physics 2 - all chapters
BYU Physics 041 Part 1 Exam
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