Physics for Scientists and Engineers 1 Test Questions with Correct Answers 100% Solved
Motion - Answers The change of an object's position with time
Trajectory - Answers The path along which an object moves
Motion diagram - Answers Diagram showing an object's position at several equally spaced instants of
time
Operational definitions - Answers Concepts that are defined in terms of a particular procedure or
operation performed by the insitgator
Translational motion - Answers The motion of an object along a trajectory
Particle - Answers The representation of a mass at a single point in space
Particle model - Answers A simplification in which we treat a moving object as if all of its mass were
concentrated at a single point
Position vector - Answers An arrow drawn from the origin to an object's position
Scalar quantity - Answers A physical quantity that can be described by a single number
Vector quantity - Answers A quantity possessing both a size and a direction
Displacement - Answers A change in position
Zero vector - Answers A vector with zero length
Kinematics - Answers The mathematical description of motion without regard to causes
Uniform motion - Answers Straight-line motion in which equal displacements occur during any
successive equal-time intervals
Speed - Answers How fast an object is going, independent of direction
Instantaneous velocity - Answers The speed and direction of an object at a single instant of time
Turning point - Answers The point where the velocity is instantaneously zero, as the particle reverses
direction
Magnitude - Answers The size of a vector
Projectile - Answers An object that moves in two dimensions under the influence of only grovity
Motion - Answers The change of an object's position with time
Trajectory - Answers The path along which an object moves
Motion diagram - Answers Diagram showing an object's position at several equally spaced instants of
time
Operational definitions - Answers Concepts that are defined in terms of a particular procedure or
operation performed by the insitgator
Translational motion - Answers The motion of an object along a trajectory
Particle - Answers The representation of a mass at a single point in space
Particle model - Answers A simplification in which we treat a moving object as if all of its mass were
concentrated at a single point
Position vector - Answers An arrow drawn from the origin to an object's position
Scalar quantity - Answers A physical quantity that can be described by a single number
Vector quantity - Answers A quantity possessing both a size and a direction
Displacement - Answers A change in position
Zero vector - Answers A vector with zero length
Kinematics - Answers The mathematical description of motion without regard to causes
Uniform motion - Answers Straight-line motion in which equal displacements occur during any
successive equal-time intervals
Speed - Answers How fast an object is going, independent of direction
Instantaneous velocity - Answers The speed and direction of an object at a single instant of time
Turning point - Answers The point where the velocity is instantaneously zero, as the particle reverses
direction
Magnitude - Answers The size of a vector
Projectile - Answers An object that moves in two dimensions under the influence of only grovity
