# Physics True False

False
The position time graph of an object moving with a constant velocity is never a straight line
False
Force is a scalar quantity
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True
The average velocity is defined as the ratio of the change of position to the time interval during which the change occurred
False
Acceleration can never be negative
False
The velocity vector of an object with a centripetal acceleration is never tangent to the circular path
True
The position time graph of an object moving with a constant average velocity is always a straight line
True
The outside edge of the spinning compact disc is moving at a higher velocity then an inside track on the disk
True
Projections of the vector make up the components of that vector
False
Joe and Sadie are supposed to meet at 3 PM in Springfield which is 150 km away from where they live Joey leaves home at noon traveling 50 km/h true or false if Sadie leave home at 1:30 PM and travels at 75 km/h she will meet Joe in Springfield on time.
True
It is not possible to drive an equation of motion for uniform acceleration without a time variable
False
The force of friction depends on the amount of surface area in contact with the two surfaces
True
The area under a velocity time graph is the displacement of the object
False
It is not possible to divide a vector quantity by scaler quantity
True
Acceleration is a vector quantity
True
The acceleration of an object is the slope of its velocity time graph
True
Factors can be summed up by separately adding the X and Y components
True
The object on which a force acts is called the system
True
The deaf dumb blind kid sure plays a mean pinball
True
Vector measurements have both magnitude and direction
False
In Newton is the amount of force applied to a 1G object that will cause it to have an acceleration of one KM/S^2
True
The sign associated with G acceleration due to gravity depends upon the choice of the coordinate system
True
A time interval is a scaler quantity
True
Multiple factors can be added together by adding there! It’s into one horizontal vector then adding the Y components into one vertical vector and finding the vector sum of those two vectors
False
The pony express
True
The direction of a vector is defined as the angle that the vector makes with the X axis measured clockwise
True
Force and acceleration are related in a linear fashion
False
Centrifugal force is Center seeking acceleration
True
The net force on an object is the resultant of the force vectors
False
Projectile motion into dimensions cannot be determined by breaking the problem into two connected one-dimensional problems
True
The key to successfully solving two dimensional relative velocity problems is drawing the proper triangle to represent all three velocity vectors
True
Centripetal acceleration is directly proportional to the square of the tangential velocity
True
The acceleration of an object in uniform circular motion always points toward the center of the circle
True
The main drawback to building a rotating space station that would stimulate gravity is that a small station would have to rotate quickly in order to achieve 1G
False
The reading on a speedometer represents the average velocity of the car
True
Static friction is exerted on one surface by another when there is no motion between the surfaces
False
Centripetal acceleration is a scaler quantity
False
Scaler measurements have both magnitude and direction
True
It is not possible to add or subtract a combination of vector quantities and scaler are quantities
True
A ball that is dropped will hit the ground at the same time as a ball that is thrown horizontally with an initial velocity of 2 m/s
False
Inertia is a force
True
In a chosen coordinate system the time interval of an object in motion can have negative values
True
The slope of a position time graph of an object gives the speed of the object
False
The specific identifiable cause of the force is called the system
False
The equilibrant is equal in magnitude and direction to the net force on an object’s
False
A fly riding on the blade of a fan spinning at a constant speed is not accelerating
False
As the speed of an object moving through a fluid increases the magnitude of the drag force decreases
True
A free body diagram represents forces acting on a system
True
The displacement of an object can be calculated by multiplying its velocity and the time interval
True
The process of breaking effector into its components is called vector resolution
True
When an object moves in a circle the net force toward the center of the circle is the centripetal force
False
When a force is a push the force arrows in a free body diagram point towards the particle
True
Acceleration is the rate at which an object speed changes
False
The relative velocity of object A to object C is the vector difference in object A’s velocity relative to object B, and object B’s velocity relative to object C
False
Static friction is exerted on one surface by another when the two surfaces are moving relative to each other
True
The velocity time graph of an object in motion with both positive acceleration and and zero initial velocity would be a line beginning at the origin and having positive slope
False
The horizontal motion of a horizontally launched projectile affects its vertical motion
True
A force cannot exist without an agent in a system
False
The objects represented by line A and line B have the same velocity
False
The Y intercept of a position time graph of an object give the average velocity of the object

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