Science q3

• MECHANICS The branch of physics that deals with the study of motion and the causes of motion.
• KINEMATICS branch of mechanics that deals with the description of motion without regard to the causes of motion.
• MOTION - defined as a continuous change in position.
• Distance - refers to "how much ground" an object has covered
• Displacement - refers to "how far out of place" an object is.
• Distance - is the length of the path by the object in going from it's initial position to it's final position.
• Displacement - is the shortest distance between the object's initial and final position.
• Average speed = (distance traveled) over (time interval spent traveling)
• Formula of distance - is average speed multiplied by time
• Average speed (v) - distance travelled over time elapsed.
• Formula of time - distance over average speed
• Average velocity - is defined as the rate of change position.
• Unit of average acceleration - meter/second squared (m/s²)
• Slope = rise/run = Xe - Xa/t² - t¹ = displacement time
• Graph - straight line.
• Object located right - positive.
• Velocity and acceleration - both vector qualities.
• Formula of Average acceleration - t²-t¹/s
• Tangent line - a line that touches the curve only at one point.
• Vave Average velocity sign - cm/s
• Vins instantaneous speed - m/s
• Formula of Instantaneous speed - very short distance over very short time interval.
• Average speed - describes the motion of the object without the direction.
• Average velocity - considers the direction of the object's motion.