Term
The BCS theory was developed to explain.. 

Definition


Term

Definition
the lowest possible temperature for matter 


Term
What is called the "language of physics"? 

Definition


Term

Definition
the study of matter and energy 


Term
Why is the work of theoretical physicists in superconductivity not finished? 

Definition
There is no complete explanation of how new superconductors work 


Term
Aristotle believed that all matter is composed of _________ 

Definition


Term
Aristotle and his followers were mainly concerned with finding out 

Definition
why specific events occur. 


Term
One of the 1st European scientists to claim publicly that knowledge must be based on observations and experiments was _________ 

Definition


Term
A surprising aspect of physics is that its results can be described by a small number of relationships, or _____ 

Definition


Term
In scientific notation, a number between 1 and 10 is multiplied by 

Definition
a wholenumber power of 10 


Term
What is the metric prefix that means 100? 

Definition


Term
When multiplying quantities expressed in scientific notation that have different exponents, you multiply the values of M and _____ the exponents. 

Definition


Term
Laboratory instruments must be read _______ to avoid parallax errors. 

Definition


Term
What is the degree of exactness to which the measurements of a quantity can be reproduced? 

Definition


Term
When adding or subtracting measurements, first perform the operation and then round off the result to correspond to the _____ value involved. 

Definition


Term
A variable that can be manipulated in an experiment is 

Definition


Term
When constructing a graph from data, the range of the xaxis is determined by the range of the ____ 

Definition


Term
What is indicated by a smooth, upward curving line on a graph? 

Definition
a direct relationship between y and with the square of x 


Term
The slope of a straightline graph is the vertical change _____ the horizontal change. 

Definition


Term
A graph that is a hyperbola represents _____ relationship. 

Definition


Term
To solve the equation vt=d for t, 

Definition
divide both sides of the equation by v 


Term
An equation is wrong if both sides contain... 

Definition
different units of measurements 


Term
A runner is 5.0 km east of another runner, who is 5.0 km east of a parking lot. Where is the first runner with respect to the parking lot? 

Definition


Term
Distance is a quantity that 

Definition


Term
A cyclist finishes a 100km race in 2.7 hours. The average velocity equals 

Definition
the displacement divided by the total time 


Term
If the average velocity of an object is the same for all time intervals, then the object moves 

Definition


Term
On a positiontime graph, the velocity equals 

Definition
the rise divided by the run 


Term
Using ______ rise and run will result in the most accurate slope on a positiontime graph. 

Definition


Term
A runner traveled 15 km east then backtracked 11 km before stopping. The displacement from the original position is 

Definition


Term
The ___ of any point on a velocitytime graph equals the instantaneous velocity at the time. 

Definition


Term
The area under the curve on a velocitytime graph equals the 

Definition
displacement from the original position to its position at the time 


Term
A child on a bicycle rides eastward past a house, as a car, also traveling eastward, slowly passes. Which of the following people would perceive the biker as having the greatest velocity? 

Definition


Term
The slope of the tangent on a positiontime graph equals the 

Definition


Term
The change in a runner's velocity with time is the runner's... 

Definition


Term
A child lets go of a ball at the top of a driveway. The instantaneous velocity of the ball as the child lets go is 

Definition


Term
On a velocitytime graph, the slope of the tangent to the curve at a given point is the 

Definition
instantaneous acceleration 


Term
Constant acceleration on a velocitytime graph produces a curve that is 

Definition


Term
The area under the curve on a velocitytime graph for an object moving with uniform acceleration is the _____ of that object 

Definition


Term
The slope of a positiontime graph is the ____ of an object. 

Definition


Term
Which best describes the relationship between the final and initial velocities of a uniformly accelerating object? 

Definition
the final velocity increases as the initial velocity increases 


Term
(Ignoring air resistance) If a 10kg ball and a 200kg crate were both dropped from the top of a building, the acceleration of the crate would be ______ the acceleration of the ball. 

Definition


Term
In Greenland, the acceleration due to gravity is ______ the acceleration due to gravity at the Earth's equator. 

Definition


Term
A toy rocket is launched straight up into the air. When the rocket reaches its max height, its velocity is at its 

Definition


Term
The total displacement of a toy rocket upon landing is 

Definition


Term
the attractive force that acts on all objects is 

Definition


Term

Definition


Term
Metals such as copper can be pounded into thin sheets due to 

Definition


Term
Which of Newton's laws state that an object with no net force acting on it remains at rest or in motion with a constant velocity? 

Definition


Term
Which law states that the acceleration of a body is directly proportional to the net force on it and inversely proportional to its mass? 

Definition


Term
Losing your speed as you ride your bike uphill demonstrates Newton's _____ law. 

Definition


Term
Two teams in a tug of war exert the same amount of force on eachother and the rope doesn't move. Newton's _____ law explains why the rope does not move. 

Definition


Term
If you push against a wall, the wall pushes back against you with ____ force. 

Definition


Term
The gravitational force exerted by a large body, such as Earth, is 

Definition


Term
Mass and velocity are related by 

Definition


Term
Difficulty in pushing a large crate from rest involves 

Definition


Term
When the drag force on an object equals the force of gravity, _______ occurs 

Definition


Term
The effect of air resistance on the tail of a kite is ______ the effect of air resistance on the body of the kite. 

Definition


Term
If the force of gravity on a balloon is 3000 N, then the lift force provided by the atmosphere is 3300 N, in which direction is the net force acting? 

Definition


Term
A hiker moves 15 km due east then heads due north for 8 km. What is the direction of the resultant vector? 

Definition


Term
The downstream velocity of a river that flows south ______ a boat's eastward velocity. 

Definition


Term
When adding vectors graphically, the length and direction of each vector must 

Definition


Term
Knowing the magnitude of the hypoteneuse of a right triangle and the side opposite angle Y, you could compute the _____ of angle Y. 

Definition


Term
The effect of the resultant vector is ______ the effect of the original vectors. 

Definition


Term
Suppose you pull a wagon along on a horizontal sidewalk. The force that pulls the wagon forward over the sidewalk is the _____ force. 

Definition


Term
If the horizontal component of a force is positive, then, by convention, the force acts 

Definition


Term
An object is an equilibrium when 

Definition
the net sum of the forces is zero 


Term
The equilibrant force is ______ the resultant. 

Definition
equal in magnitude but opposite in direction to 


Term
To resolve a force vector into its components, a set of perpendicular axes is drawn. Then the _____ is drawn to scale at the corract angle. 

Definition


Term
When vectors are resolved into components on an inclined plane, the _____ force is the one that acts along the incline 

Definition


Term
As the angle of an inclined plane increases, the parallel force ______ and the perpendicular force _______ 

Definition


Term
For an object moving along a trajectory, the horizontal acceleration of the object ______ as the position changes. 

Definition


Term
The vertical change in position of an object that is dropped and that of an identical object that is thrown horizintally from the same height... 

Definition


Term
Suppose an object is dropped from a moving train. The time it takes to fall is... 

Definition
independent of the observer's position 


Term
In trajectory motion, the initial velocity is ____ the final horizontal velocity. 

Definition


Term
In a projectile motion, the rising and falling times of the object are equal if the launching position is ______ the landing motion. 

Definition


Term
Where would the pitcher have to aim a fast ball in order to have it pass at the height of the batter's chest? 

Definition
just above the height of the batter's chest 


Term
Momentum can be calculated by multiplying 

Definition


Term
If no net force acts on a body... 

Definition
the velocity of the body is constant 


Term
The greatest change in momentum will be produced by... 

Definition
a large force acting over a long time 


Term
If an object with a velocity of 50 m/s has the same momentum as that of a 10 kg mass having a velocity of 20 m/s, the mass of the object is 

Definition


Term
Impulse can be repesented by 

Definition
force times the change in time 


Term
If an object moving at a rate of 20 m/s collides with a stationary object and the two objects move away together, the velocity of the combined objects will be 

Definition

