True and False

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True

Force and acceleration are related in a linear fashion

True

The net force on an object is the resultant of the force vectors

True

A collision between two moving objects can be represented on a position-time graph

True

A free-body diagram represents forces acting on a system

False

Acceleration can never be negative

True

Acceleration is a vector quantity

False

Acceleration is the rate at which an object's speed changes

False

As the speed of an object moving through a fluid increases, the magnitude of the drag force decreases

False

Force is a scalar quantity

False

It is not possible to derive an equation of motion for uniform acceleration without a time variable

False

Scalar measurements have both magnitude and direction

False

Static friction is exerted on one surface by another when the two surfaces are moving relative to each other

True

Static friction is exerted on one surface by another when there is no motion between the surfaces

True

The acceleration of an object is the slope of its velocity-time graph

True

The area under a velocity-time graph is the displacement of the object

True

The displacement of an object can be calculated by multiplying its velocity and the time interval

False

The equilibrant is equal in magnitude and direction to the net force on an object

False

The position-time graph of an object moving with a constant velocity is never a straight line

True

The process of breaking a vector into its components is called vector resolution

True

The sign associated with g, the acceleration due to gravity, depends upon the choice of the coordinate system.

False

The slope of a position-time graph of an object gives the speed of the object

True

The velocity-time graph of an object in motion with both positive acceleration and zero initial velocity would be a line beginning at the origin and having positive slope

False

The y-intercept of a position-time graph of an object gives the average velocity of the object

True

Vector measurements have both magnitude and direction

True

Vectors can be summed by separately adding the x- and y-components


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