Significant Figures
How many Significant Figures?
0.0043
2
Expand the following:
3.24 x 104
32400
v = d/t
An object traveled 20 meters in 5 seconds. Find the velocity.
v = 4 m/s
Rewrite as one exponent:
103 x 104
107
How many Significant Figures?
670000
2
Expand the following:
3.84 x 10-3
0.00384
vf = vi + at
An object started at a velocity of 2 m/s and accelerated at a rate of 1.5 m/s2 for 3 seconds. Find the final velocity.
vf = 6.5 m/s
Rewrite as one exponent:
(102)3
106
How many Significant Figures?
0.0270
3
Expand the following:
5.03 x 106
5,030,000
vf = vi + at
An object accelerated at a rate of 2 m/s2 for 3 seconds and reached a final speed of 15 m/s. Find the initial velocity.
vi = 9 m/s
Rewrite as one exponent:
105 / 102
103
How many Significant Figures?
1.00820
6
5800
5.8 x 103
g = 2h/t2 , g = 9.8
An object was dropped from a window and took 3 seconds to land. Find the height of the window.
h = 44.1 meters
Rewrite as one exponent:
1 / 105
10-5
Calculate the following, rounded to the appropriate amount of significant figures.
2.46 x 3.2
7.9
Rewrite the following in scientific notation:
0.000391
3.91 x 10-4
d = vi t + 0.5 a t2
An object traveled 500 m in 4 seconds, while accelerating at a rate of 2.5 m/s2. Find the initial velocity.
vi = 5 m/s
Rewrite as one exponent:
(103)3 x 10-4
105