1
You drop containers of eggs from several heights then count the number of broken eggs.
dependent variable number of eggs
independent variable heights
2
You exert forces at 10 pound increments on as toy car and measure the resulting speed.
dependent variable speed
independent variable force
3
You drop a physics teacher from a tall building and measure his speed at 1 second increments
dependent variable speed
independent variable time
4
You increase pressure at a rate of 10lbs/in2 and measure the resulting volume of a giant marshmallow.
dependent variable volume
independent variable pressure
5
Identify the axis on which the following variables are graphed.
dependent variable y-axis
independent variable x-axis
6 A B C
Which graph is described by the equation y=kx2
C
7 A B C
Which graph shows a linear relationship?
B
8 A B C
Which graph will produce a constant when (x)(y)?
A
9 A B C
Which graph is described by the equation y=mx+b
B
10 A B C
When pressure on a volume of gas is increased, the volume decreases. Which graph?
A
11 A B C
The human population is growing at an ever increasing rate. Which graph?
C
12 42 km = ___ µm
(42km)(109 µm/km)
(42km)(109 µm/km) 42 x 109 µm
4.2 x 1010 µm
13
1.5 x
4 10
ms= ___ das
(1.5 x 104 ms)(1 das/ 104 ms)
(1.5 x 104 ms)(1 das/ 104 ms) 1.5 das
14 1.2 x 1012 ng= ___Mg
(1.2 x 1012 ng)(1 Mg/1015 ng)
(1.2 x 1012 ng)(1 Mg/1015 ng)
(1.2 x 1012)(1 Mg/1015) 103 1.2 x 10-3 Mg
15 9.1 x 102 hm/hr=
___mm/s
(9.1x102 hm/hr)(105mm/hm) (1hr/3.6x103 s) (9.1x102 hm/hr)(105mm/hm) (1hr/3.6x103 s)
(9.1x107 mm/3.6 s)
2.5x104 mm/ s)
+5
earth radius 6.37x103km speed at equator 2x103km/hr length of day? d=vt so t=d/v and d=2πr thus t= 2πr /v t= 2π6.37x103km /2x103km/hr t= 20 hours
Ex1
80
60 Mass (g)
40
20
0 0 20 40 603 Volume (cm )
80
Ex1
80
60 Mass (g)
40
20
0 0
•
20 40 603 Volume (cm ) 80
Ex1
80
60 Mass (g)
40
20
0 0
• •
20 40 603 Volume (cm ) 80
Ex1
80
60 Mass (g)
40
20
0 0
• •
20
•
40 603 Volume (cm ) 80
Ex1
80
60 Mass (g)
40
20
0 0
• •
20
• •
40 603 Volume (cm ) 80
Ex1
80
60 Mass (g)
40
20
0 0
• •
20
• •
•
80
40 603 Volume (cm )
Ex1
80
60 Mass (g)
40
20
0 0
• •
20
• •
•
80
40 603 Volume (cm )
Ex1
b. linear
Ex1
b. linear
c. y=mx+b m=mv m=dv
Ex1
b. linear
c. y=mx+b m=mv m=dv d. g/cm3, density
Ex3
30
acceleration (m/s2)
20
10
0 0 10
force (N)
20
30
40
Ex3
30
acceleration (m/s2)
20
10
•
0 0 10
force (N)
20
30
40
Ex3
30
acceleration (m/s2)
20
10
•
0 0
•
10
force (N)
20
30
40
Ex3
30
acceleration (m/s2)
20
10
•
0 0
•
10
•
force (N)
20 30 40
Ex3
30
acceleration (m/s2)
20
10
•
0 0
•
10
•
•
force (N)
20
30
40
Ex3
30
acceleration (m/s2)
20
10
•
0 0
•
10
•
•
•
force (N)
20
30
40
Ex3
30
acceleration (m/s2)
20
10
•
0 0
•
10
•
•
•
•
force (N)
20
30
40
Ex3
30
acceleration (m/s2)
20
10
•
0 0
•
10
•
•
•
•
force (N)
20
30
40
Ex3
b. as force increases, acceleration increases
Ex3
b. as force increases, acceleration increases c. y=mx+b a=m f a=(1/m)v
Ex3
b. as force increases, acceleration increases c. y=mx+b a=m f a=(1/m)v
d.
2/N m/s
Pr2
acceleration (m/s2)
14
12
10 8 6 4
2
0 0 2 4 6 8
mass (g)
Pr2
acceleration (m/s2)
14
12
10 8 6 4
•
2
0 0 2 4 6 8
mass (g)
Pr2
acceleration (m/s2)
14
12
10 8 6 4
•
•
2
0 0 2 4 6 8
mass (g)
Pr2
acceleration (m/s2)
14
12
10 8 6 4
•
•
2
0 0 2
•
mass (g)
4 6 8
Pr2
acceleration (m/s2)
14
12
10 8 6 4
•
•
2
0 0 2
••
mass (g)
4 6 8
Pr2
acceleration (m/s2)
14
12
10 8 6 4
•
•
2
0 0 2
•• •
mass (g)
4 6 8
Pr2
acceleration (m/s2)
14
12
10 8 6 4
•
•
2
0 0 2
•• ••
mass (g)
4 6 8
Pr2
acceleration (m/s2)
14
12
10 8 6 4
•
•
2
0 0 2
•• ••
mass (g)
4 6 8
Pr2
b. inverse, or hyperbola
Pr2
b. inverse, or hyperbola
c. as mass increases, acceleration decreases
Pr2
b. inverse, or hyperbola
c. as mass increases, acceleration decreases d. k=xy, or k=ma, or f=ma since force was constant.
Pr2
b. inverse, or hyperbola
c. as mass increases, acceleration decreases d. k=xy, or k=ma, or f=ma since force was constant. 2 e. g/m/s