Mr. Byrne September 8, 2006
Physics
HOMEWORK
- Write
the following in proper scientific notation: a) 1,156,000 b)
218 c) 0.0068 d) 27.635 e) 0.21 f) 22
- Write
the following in decimal form: a)
7.1 x 103 b) 8.69 x 104 c) 6.6 x 10-1 d) 8.76 x 102 e) 8.62 x 10-5
- How
many
significant figures
do each of the following numbers have: a) 142
b) 81.60 c) 7.63
d) 0.03 e) 0.0086 f) 3236 and g) 8700
- Multiply
the following and take into account the rule regarding
significant figures: a) 2.079 x 102 and 0.0072 x 10-1 b) 2.0 x 105 and 0.035 x
102
- A
rectangle is 3.7 m long and 2.37 m wide.
What is its area?
- What
is the area of a circle of radius 6.37 x 106 m?
- Add
7.2 x 103 s + 8.3 x 104 s + 0.09 x 106 s.
- Calculate
the a) perimeter and b) area of a rectangle with a length of 1.5 m and a
width of 25 cm.
- Convert
the following:
a)
0.75 km to cm
b)
0.675 mg to g
c)
2 h 10 min to s
d)
790 cm2 to
m2
e)
60 mi/h to m/s
1 mi = 1609 m; centi = 1/100;
milli = 1/1000; kilo = 1000
- Can a
set of measurements be precise but not accurate? Explain.