speed, velocity, and acceleration 2023

What is speed?

• how far you go

• distance

• how fast you accelerate

• distance covered over time

Tags

NGSS.MS-PS3-1

What is velocity?

• the quickness of an object

• acceleration

• speed in a specific direction

• the location of an object

What is the formula to calculate speed?

• V = Xfinal - X initial/ time

• S = d x t

• S = d / t

• Xf- Xi

Tags

NGSS.MS-PS3-1

What s the formula for displacement?

• Xf - Xi

• S = d/t

• S= d x t

• v = displacement / time

The speed of these cars may be similar. but their velocity is not similar because

• they change speed

• they are different types of cars

• their Xinitial is the same

• they go in different directions

How do speed and velocity differ?

• speed has a Xi and and Xf

• speed has magnitude

• velocity is a vector

• velocity has motion

A vector is a

• measurement that includes direction and magnitude

• a measurement that includes distance and magnitude

• a measurement that includes only direction

• a measurement that is a coordinate sysytem

This term refers to the point where the object begins to move from and may return to during motion

• a position

• a point of reference

• a vector

• a point of origin

which statement best represents the graph (the Y axis represents speed)

• cat b is at rest

• the velocity of car B is decreasing over time

• The velocity of car B is constant over time

• car B is accelerating

Tags

NGSS.MS-PS3-1

A ship sails 5,635 km from England to the United States in 2,520 hours. What is the ship's velocity?

• 1,610 km/m east

• 1,610 km/m west

• 1,610 m