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Conceptual Physics: Chapter 4: Newton's 1st Law - Conceptual Physics
Conceptual Physics 10th e. by Paul G. Hewitt Summary of Terms, Summary of Formulas, and Terms Within the Textbook
Terms in this set (25)
How fast something moves; the distance traveled per unit of time.
The speed of an object and a specification of its direction of motion.
Quantity in physics that has both magnitude and direction such as velocity
The rate at which velocity changes with time; the change in velocity may be in magnitude, or direction, or both.
Motion under the influence of gravity only.
Average speed =
total distance covered
change of velocity
Acceleration (along a straight line) =
change in speed
Velocity acquired in free fall, from rest;
*v = gt*
the time that has passed since the beginning of any motion, in this case the fall.
All motion is relative to the observer and the reference point used.
Motion along a straight-line path.
Speed at any instant. example: speedometer
Motion in a straight line at a constant speed.
final velocity plus initial velocity divided by 2
Distance, velocity and acceleration vs time graphs
Graphs which plot distance, velocity and acceleration against the independent variable of time .
Know the relationships!
The two measurements necessary for calculating average speed are
Distance and time
A car maintains a constant velocity of 100 km/hr for 10 seconds. During this interval its acceleration is
While an object near the Earth's surface is in free fall, its
A hockey puck is set in motion across a frozen pond. If ice friction and air resistance are neglected, the force required to keep the puck sliding at constant velocity is
Disregarding air resistance, objects fall with constant
The state of a body in which no net force acts on it
speed vs time graph
slope represents acceleration
distance vs time graph
slope represents speed