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Physics Review Beginning of the Year

Total questions: 25

Worksheet time: 1hrs 28mins

Name
Class
Date
1.

Convert 55 kg to pounds (lbs)

a)

25 lb

b)

121 lb

c)

55 lb

d)

245 lb

2.

Convert 26 m/s to mi/hr

a)

12 mi/hr

b)

1.5 x 108 mi/hr

c)

58 mi/hr

d)

4.4 x 10-6 mi/hr

3.

Convert 4,500 rev/hr to rad/s

a)

7.85 rad/s

b)

2,578,310.1 rad/s

c)

2.0 rad/s

d)

101, 787,602 rad/s

4.

Convert 650 N to pounds (lbs)

a)

295 lbs

b)

2,892.5 lbs

c)

1,430 lbs

d)

146 lbs

5.

Convert 1,450 km/hr to m/min

a)

87 m/min

b)

403 m/min

c)

24,167 m/min

d)

5,220 m/min

6.

Write in scientific notation: 175,000,000 m

a)

1.75 x 108 m

b)

17.5 x 109 m

c)

0.175 x 107 m

d)

175 x 1010 m

7.

Write in scientific notation: 0.00000143 s

a)

14.3 x 10-7 s

b)

143 x 10-8 s

c)

1.43 x 10-6 s

d)

0.143 x 10-5 s

8.

Write in scientific notation: 85,000 N

a)

85 x 103 N

b)

8.5 x 104 N

c)

0.85 x 102 N

d)

850 x 105 N

9.

Write in scientific notation: 0.00000000025 in

a)

0.25 x 10-9 in

b)

25 x 10-11 in

c)

250 x 10-12 in

d)

2.5 x 10-10 in

10.

Write in scientific notation: 3,400,000 ft

a)

3.4 x 106 ft

b)

34 x 107 ft

c)

0.34 x 105 ft

d)

340 x 108 ft

11.

Write using a prefix: 8.4 x 10-13 m

a)

0.84 pm

b)

840 fm

c)

84 Tm

d)

0.084 Pm

12.

Write using a prefix: 6.37 x 1012 N

a)

6.37 fN

b)

6.37 TN

c)

6370 pN

d)

6.37 PN

13.

Write using a prefix: 4.7 x 1010 Hz

a)

47 nHz

b)

47 GHz

c)

0.047 THz

d)

470 pHz

14.

Write using a prefix: 3.81 x 10-8 s

a)

381 Ms

b)

38.1 Gs

c)

0.0381 microseconds

d)

38.1 ns

15.

Write using a prefix: 5.467 x 107 J

a)

54.67 microjoules

b)

0.05467 GJ

c)

54.67 MJ

d)

546.7 nJ

16.

Write using a prefix: 9.3 x 10-12 ft

a)

9.3 pft

b)

9.3 Tft

c)

9300 femtofeet

d)

9300 Gft

17.

Solve for k in the equation: U =1/2kx2

a)

k = 2U/x2

b)

k = squareroot(2U/x)

c)

k = U/x2

d)

k = 2x2/U

18.

 F = mvaF\ =\ \frac{mv}{a}  
Solve for v in the equation

a)

 v = Fmav\ =\ \frac{F}{ma}  

b)

 v = (Fa)mv\ =\ \frac{\left(F-a\right)}{m}  

c)

 v = Famv\ =\ \frac{Fa}{m}  

d)

 v = Famv\ =\ Fam  

19.

 P = FdtP\ =\ \frac{Fd}{t} Solve for F in the equation

a)

 F = PtdF\ =\ Ptd  

b)

 F = PtdF\ =\ \frac{Pt}{d}  

c)

 F = dPtF\ =\ \frac{d}{Pt}  

d)

 F = dPtF\ =\ \frac{dP}{t}  

20.

 a = vta\ =\ \frac{v}{t}  
Solve for t in the equation

a)

 t = avt\ =\ av  

b)

 t = avt\ =\ \frac{a}{v}  

c)

 t = vat\ =\ \frac{v}{a}  

d)

 t = v at\ =\ v\ -a  

21.

 a = mFa\ =\ \frac{m}{F}  



Using unit analysis identify if the equation is dimensionally correct.

a)

 ms2 = s2m\frac{m}{s^2}\ =\ \frac{s^2}{m}  NO

b)

 ms2 = ms2\frac{m}{s^2}\ =\ \frac{m}{s^2}  YES

c)

 kgms2 = kg ms2kg\cdot\frac{m}{s^2}\ =\ kg\ \cdot\frac{m}{s^2}  YES

d)

 kgsm = kg mskg\cdot\frac{s}{m}\ =\ kg\ \cdot\frac{m}{s}  NO

22.

 d = vtd\ =\ vt  
Using unit analysis identify if the equation is dimensionally correct.

a)

 m = msm\ =\ ms  NO

b)

 m = mm\ =\ m  YES

c)

 m = smm\ =\ \frac{s}{m}  NO

d)

 ms = ms\frac{m}{s}\ =\ \frac{m}{s}  YES

23.

 T = 2πmkT\ =\ 2\pi\sqrt{\frac{m}{k}}  
Using unit analysis identify if this equation is dimensionally correct.

a)

 s = ss\ =\ s   YES

b)

 s = 1ss\ =\ \frac{1}{s}  NO

c)

 s = kgmNs\ =\ \frac{kg\cdot m}{N}  NO

d)

 Nm = Nm\frac{N}{m}\ =\ \frac{N}{m}  YES

24.

 h = Ugmh\ =\ \frac{Ug}{m}  
Using unit analysis identify if the equation is dimensionally correct.

a)

 m = mm\ =\ m   YES

b)

 kgm2s2 = kgm2s2kg\cdot\frac{m^2}{s^2}\ =\ kg\cdot\frac{m^2}{s^2}  YES

c)

 m = m4s4m\ =\ \frac{m^4}{s^4}  NO

d)

 m = m4s2m\ =\ \frac{m^4}{s^2}  NO

25.

 x = Fkx\ =\ Fk  
Using unit analysis identify if the equation is dimensionally correct.

a)

 m = mm\ =\ m  YES

b)

 kg = kgkg\ =\ kg  YES

c)

 m = N2mm\ =\ \frac{N^2}{m}  NO

d)

 m = N2mm\ =\ N^2m  NO