WorksheetsUnit and dimension chp-2
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
You know that 12 inches = 1 foot. Convert 60 inches to feet.
a)
720 feet
b)
5 feet
c)
5 inches
d)
72 feet
2.
You know 1000 mg = 1 g. Convert 2.5 grams into milligrams.
a)
25 mg
b)
25,000 mg
c)
250 mg
d)
2500 mg
3.
How many minutes are in a year?
a)
I can't count that high.
b)
525,600min
c)
52,560min
d)
31,536,000min
4.
How many years are in a 3 months?
a)
0.2 yrs
b)
0.75 yrs
c)
0.50 yrs
d)
0.25 yrs
5.
A submarine is 150 below sea level while an airplane is 375 above sea level. What is the difference between the height of the submarine and the airplane?
a)
-525
b)
525
c)
325
d)
-325
6.
What are the 3 major types of Error in Error Analysis?
a)
Careless Error, Precision Error, Careful Error
b)
Careless Error, Precision Error, Instrumental Error
c)
Zero Error, Careless Error, Random Error
d)
Systematic Error, Random Error, Least count Error
7.
Which of the following numbers has three significant figures?
a)
1014 miles
b)
101 feet
c)
1000 yards
d)
all of the choices
8.
How many significant figures does the following number have: 0.998005
a)
9
b)
10
c)
6
d)
5
9.
Round 0.010229 to four significant figures
a)
1022
b)
1023
c)
0.01023
d)
0.01022
10.
What is 0.658 rounded to 1 significant figure?
a)
0
b)
0.66
c)
0.7
d)
0.658
11.
How many significant figures does the following number have: 1740200
a)
4
b)
7
c)
3
d)
5
12.
Calculate 12.34 + 1.234 + 0.1234 and give your answer with the correct number of significant figures.
a)
13.6974
b)
13.697
c)
13.70
d)
13.7
13.
Calculate 345.009 g - 23.00 g and give your answer with the correct number of significant figures.
a)
322.01 g
b)
322 g
c)
322.009 g
d)
322.0
14.
Calculate 7.987 m - 0.54 m and give your answer with the correct number of significant figures.
a)
7.45 m
b)
7.447 m
c)
7.4 m
d)
7.5 m
15.
Calculate 1.23 m x 0.89 m and give your answer with the correct number of significant figures.
a)
1.0 m2
b)
1.1 m2
c)
1.0947 m2
d)
1.095 m2
16.
1 Astronomical unit (AU) is equal to
a)
1.496x1011 m
b)
1.496x1012 km
c)
9.46x1015 m
d)
3.08x1016 m
17.
Parsec is a unit to measure
a)
Time
b)
Distance
c)
Angle between the planets and sun
d)
Speed of light
18.
Find the dimension of c in the equation x=A+Bt+ct^2+Dt^3/E+t
a)
M^0LT^0
b)
M^0LT^-1
c)
M^0LT^-2
d)
MLT^2
19.
Find the dimension of b in the equation v=a+bt
a)
MLT0
b)
M0LT-2
c)
M0 L2T2
d)
M0L0T-2
20.
What is the dimensional formula of surface tension T= lF
a)
ML0T-2
b)
ML2T-2
c)
M0L2T-2
d)
ML3T
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