Motion Graphs

motion

when an object's distance from another object is changing

reference point

a place or object used as comparison to tell if motion has occurred

speed

the distance traveled in a certain amount of time

velocity

speed in a certain direction

acceleration

the rate at which velocity changes (how fast you change velocity)

instantaneous speed

speed at that moment (how fast you are going right now)

average speed

the TOTAL distance traveled in the TOTAL time it took, even thought you may have gone faster or slower)

constant speed

speed that does not change

m/s2

the unit for acceleration

time

this is on the x-axis on a velocity graph

distance

this is on the y-axis on a velocity graph

10 m/s

what is the velocity of this object?

b

Shows the object has stopped moving

a. A-B

b. B-C

c. C-D

a

This line shows that the object is:

a. increasing speed

b. decreasing speed

c. going constant speed

d. changing direction

instantaneous speed

This tells your:

10

At what hour are A and B in the same place at the same time?

c

What does vi stand for in this equation?

a. integral velocity

b. instantaneous velocity

c. initial velocity

speed up, slow down, change direction

Three ways to accelerate are:

d

How can an object moving at constant speed be accelerating?

a. it can stop

b. it can be staying at the same speed

c. it can be slowing down

d. it can be turning

velocity

What is this formula used to calculate? d/t

b

Why is this car accelerating?

a. It is decreasing speed

b. It is increasing speed

c. It is stopped

d. It is going constant speed

reference point

To tell if the car is in motion you use the tree as a:

add them

To find the resultant velocity of two objects moving in the same direction you:

subtract the smaller velocity from the larger velocity

to find the resultant velocity of two objects moving in opposite directions you:

60 m/s north

An action hero is running on top of a train traveling at 55m/s north. If our hero is moving

toward the front of the train at a speed of 5 m/s, what is our hero's resultant velocity?

4 m/s2

You take a shopping cart that is not moving and race it down the grocery isle at 10 m/s

in 2.5 seconds. What is your acceleration?

11 m/s north

A river flows at a speed of 12 m/s from north to south. A powerboat can move at a speed of 23 m/s. What is the resultant velocity of the boat traveling against the current)?

35 m/s south

A river flows at a speed of 12 m/s from north to south. A powerboat can move at a

constant maximum speed of 23 m/s What is the maximum velocity of the boat if it goes WITH the current?

1.5 hours

What is the total time that this object was stopped?

a

When is this object moving the slowest while still moving?

a. A-B

b. B-C

c. C-D

d. E-F

d

Which graph(s) show acceleration?

a. F

b. D

c. B & C

d. D & E

20 km

How many km does this object cover when it is moving the fastest?

false

This object is slowing down: true or false

car

Which object goes constant speed?

green

Which object, green or red, won the race?

10 m/s

Calculate the velocity from 2-5 minutes

3 m

How many meters away from Ms. D's classroom are you when you begin to walk away down the hallway?

moving backwards

Is this object moving forwards, moving backwards, increasing speed or decreasing speed?

distance

the space between two points

time

what happens between two events

30 seconds

You are in TROUBLE! If you walk 45 m to Dr. Cohen's office at a velocity of 1.5 m/s, how long will it take you to get there?

1.67 m/s

How fast are you riding your bike if you ride 20 m in 12 seconds?

99 m

How far away is the lunchroom from Ms. Crowley's room if you walk at 1.8 m/s and it takes you 55 seconds to get there?

9.62 m/s

What is the velocity of a runner who travels 100 m in 10.4 seconds?