Motion

Chapter 11.1 distance and displacement

18 cards·by Kayla

Frame of reference

system of objects that are not moving with respect to one another

Relative Motion

Movement in relation with frame of reference

Distance

Length of a path between two points

Vector

Quantity that has magnitude and direction

Resultant vector

Vector sum of two or more vectors

Speed

Ratio of the distance an object moves to the amount of time the object moves

Average speed

total distance traveled divided by time it takes to travel that distance

Instantaneous speed

Rate at which an object is moving at a given moment in time

Velocity

speed and direction in which an object is moving

acceleration

Rate at which velocity changes

Free fall

movement of an object toward earth solely because of gravity

Constant acceleration

Steady change in velocity

non-linear graph

curve connects the data points that are plotted

What two things must you know to describe the motion of an object?

Speed and Direction

True or False-A frame of reference is not necessary to describe motion accurately and competently?

False

What is the SI unit best suited for measuring the length of a room in your home?

Meter

True and False- Five blocks south is an example of a displacement.

True

compare and contrast distance and displacement

Distance-length b\w two point, displacement-direction from the starting point & the length of a straight line from starting and ending pnt