Physics Math Review

Random

100

How many significant figures does 0.001068 m have?

4

200

9999 m = ? km 

9.999 km

300

Express 0.003200 m in scientific notation:

3.200 x 10^-3 m

400

Calculate the following using correct significant figures and units: 1.111 in + 0.71 in + 12.0 in = ?

13.8 in

500

Convert 8 km/h to m/s:

(8 km / h)(1000 m / 1 km)(1 h / 60 min)(1 min / 60 s) = 2.22 m/s

Significant Figures

100

Which digits are significant: 370 students

370 infinite!

200

Which digits are significant: 801.30 in

801.30 in

300

Which digits are significant: 6.301 x 10³ m

6.301 m

400

Sum the following to the appropriate number of significant figures: 4.50 ft + 2.100 ft -1.30 ft = ?

5.30 ft

500

Solve the following to the appropriate number of significant figures: 2.00 cm x 5.10 cm x 3.5 cm= ?

36 cm³

Scientific Notation

100

What factor of 10 corresponds with the prefixes: centi , milli

10^-2 , 10^-3

200

What prefix corresponds with 10³ and with 10⁶ ?

kilo , mega

300

Re-write 301,000 cm in scientific notation:

3.01 x 10⁵ cm

400

Rewrite 9.10 x 10^-6 mL in expanded notation:

.00000910 mL

500

Rewrite 0.0010189 L in scientific notation:

1.10189 x 10^-3 L

Unit Conversions

100

Convert 1 meter into centimeters:

1 m = 100 cm

200

Convert 9.1 m to mm: 

(9.1 m / 1)(1000 mm / 1 m) = 9100 mm

300

Convert 673.1 mg to g:

(673.1 mg / 1)(1 g / 1000 mg) = .6731 g

400

Convert 251 km to cm:

(251 km / 1)(1000 m / 1 km)(100 cm / 1 m) = 25,100,000 cm

500

Convert 60 km/h to m/s:

(60 km / 1 hr)(1000 m / 1 km)(1 hr / 60 min)(1 min / 60 s) = 16.67 m/s

Dimensional Analysis

100

8.50 g - .25 g = ?

8.25 g

200

100 m / 20 s = ?

5 m/s

300

100 cm x 200 cm x 300 cm =

6,000,000 cm³

400

10.00 g + 15.001 kg = ? kg

Convert 10.00 g to kg first: 

(10.00 g / 1)(1 kg / 1000 g) = .010 kg

Add .010 kg to 15.001 kg:

.010 kg + 15.001 kg = 15.011 kg

500

Can you convert miles per hour to inches per meter? Why or why not, EXPLAIN.

No, distance / time does not convert into distance / distance.