Units
Speed
Vocabulary
Graphs
Vocabulary 2
100
Kilometer (km), meter (m), centimeter (cm), and millimeter (mm) are used to measure ____________?
distance
100
You need two measurements to calculate speed.
distance
time
100
How high something is, such as a mountain, top of building, ramp height
elevation
100
What is the purpose of a graph? Why do we make graphs?
makes data (information) visual
or
easy to understand the data
100
You use Xf to show.... what?
where motion is finished or stopped, or final
200
The units for time include:
a. c.
b. d.
a. second c. hour
b. minute d. day
200
What happens to speed when the elevation goes up?
speed increases (goes up)
200
What is an equation?
math sentence, includes an equal (=) sign
200
On a speed graph, the independent variable is ___________________
time
200
What is the definition for surface?
the outside layer; the top
300
You need to find the speed of a car traveling 300 km in 6 hours? What unit(s) are needed for the answer?
km/hr
300
What is the formula for calculating speed?
distance/time
distance divide time
300
What can slow down speed?
different surfaces or
friction
300
The bottom left corner of the graph must always start with this number.
zero, 0
300
Which is farther, kilometer (km) or meter (m)?
Kilometer (km)
400
You need to know how much time it will take to ride your bike to the store 800m at a speed of 20m/min. What unit(s) are needed for the answer?
minutes
400
What happen to the speed of the car when the surface was a towel?
slowed down
decreased
400
How do you find the average of these numbers:
6, 8, 10, 12, 20, 22
Add: 6 + 8 + 10 + 12 + 20 + 22 = 78
Divide 78 divide by 6 the # of addends. 78/6 =13
400
All graphs require 4 things
title
label independent variable
numbers (data)
label dependent variable
400
Why has Sandy been absent for so long?
Sandy had hip replacement surgery
500
How far can your little brother travel at 2.5 m/s and in 5 seconds? The correct unit for the answer is _____________
meter
500
Which is faster:
A. Car travelling 100 km in 5 hours?
B. Car travelling 500 km in 10 hours?
A. 20 km/hr
B. 50 km/hr = the fastest
500
What force slows down motion by sticking to the surface (shoes, tires)
traction
or
friction
500
On the speed and elevation graph, which variable was independent?
elevation
500
Who is your substitute teacher? Spell first name and last name.
Deb Hornfeldt