Module 1 and 2

• Displacement - change of position of an object
• Vector quantity - physical measurement that has both magnitude and direction.
• Scalar quantities - only have magnitude.
• Velocity - speed with direction.
• Average velocity - divided by the time travel.
• Instantaneous velocity - specific instant of time or specific point along the path.
• Horizontal motion - occurs parallel to the ground.
• Vertical motion - occurs perpendicular to the ground.
• Gravity - main force that acts vertical motion.
• Free fall - case of motion with a constant acceleration.
• Uniformly accelerated motion - move in constant acceleration.
• Motion - is the change in an object's position over time relative to a reference point.
• Instantaneous acceleration - the acceleration at a specific instant of time.
• Physics- deals with matter and energy and their interactions.
• Matter - occupies space and has mass.
• Energy -capacity of doing work.
• Measurement is a process of computibg the amount of an unknown physical quantity by using a standard known quantity.
• Accuracy refers to the closenesd of a measurement to the accepted value for a specific physical quantity.
• Precision agreement among several measurements or closeness of measured values to each other.
• Random error this is a errors in interpretations or human errors.
• Systematic errorerror of instruments
• Scientific notation is writing a large numbers as well as small numbers is to use a shorthand method.