Science quiz (3rd quart)

• motion- a continuous change in position with respect to a reference point for a particular time interval
• Reference point - it is the starting point or the origin for measuring motion
• Distance - the total lenght of the entire path that the object or a person travelled in moving from one place to another
• Scalar quantity - a type of quantity that is a single number indicating size, magnitude or dimension
• Displacement - the shortest distance between the objects initial and final position
• Vector quantity - magnitude and direction
• Velocity - it refers to the rate of change in displacement
• Acceleration - refers to change in speed or velocity
• Positive acceleration - increase
• Deceleration - decrease
• Speed - refers to how fast an object moves in an given time interval