Physics 20 – Introduction to Physics Review
Name: _______________
Parent Signature: ________________
Do your work on a separate sheet of paper.
A. Convert:
1. 3.2 Kg = ______ g
2. 290 mg = ______ g
3. 3.1 h = ______ s
4. 4000 s = ______ h
5. 9.7 m/s = ______ km/h
6. 90 km/h = ______ m/s
B. Write the following in scientific notation:
1.
2.
3.
4.
5.
6.
7.
5800 m
450 000 kg
302 000 000 s
86 000 000 000 kg
0.000 508 m
0.000 000 45 s
0.004 m
C. Expand the following
1. 3.2 x 106
2. 4.5 x 10-5
3. 4.30 x 1010
4. 9.09 x 10-7
D. Complete the following Operations with Scientific Notation (be sure to use proper units):
1. 5 x 10-7 m +3 x 10-7 m
2. 4 x 10-3 kg + 3 x 10-3 kg
3. 1.66 x 10-19 mm + 2.30 x 10-19 mm
4. 7.2 x 10-12 g – 2.6 x 10-12 g
5. 6 x 10-8 km - 4 x 10-8 km
6. 8.2 m – 3 x 102 m
7. (2 x 104 m)(4 x 108)
8. (3 x 104 m)(2 x 106 m)
9. (2.5 x 10-7 m)(2.5 x 1016 s)
10. (6 x 108 kg)÷(2 x 104 kg)
11. (6 x 10-8 m) ÷(2 x 10-4s)
12. (3 x 104 kg)(4 x 104m) ÷(6 x 104 s)
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E. State the number of significant digits
1. 2804 m
2. 0.003068 m
3. 0.0029 m
4. 4.06 x 105 m
5. 75 m
6. 1.008 x 108 m
7. 0.007 060 kg
F. Find the answer to the proper number of significant digits:
1. 24.668 m + 2.343 m + 3.21 m
2. 6.201 cm + 7.4 cm + 0.68 cm + 12.0 cm
3. 10.8 g – 8.264 g
4. 475 m – 0.4168 m
5. 3.22 cm x 2.1 cm
6. 36.5 m ÷ 3.414 s
7. 131 cm x 2.3 cm
8. 20.2 cm ÷ 7.41 s
9. 3.1416 cm ÷ 12.4 s
G. Identify the 3 types of Variables:
Randy wanted to test if fruit left on the counter molds before fruit in the fridge.
MV _________________________________________________________________
RV _________________________________________________________________
CV _________________________________________________________________
H. Word Problems: List the Given, What you need to Find, Formula, and then Solve!
Give answers to the proper significant digits.
1. If a train can travel 3.50 x 103 km in 4.5 hours, what is its velocity in km/h? In m/s?
2. Your car is traveling at 125 km/h. How far can you go in 3 minutes (in metres)?
I. Explain how you would use the Scientific Method to fix the problem when you try and
turn your TV on with the remote and it will not turn on.
(Write your answer so you need to make at least two different experiments – that means
your first experiment does not solve the problem).
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