MCAT Physics Practice test 2 & Answer key

1)we have two capacitors C1=1nF ,C2=10nF,what is the value in parallel of their capacitance sums ?

 A.   0.9  nF
 B.   11   nF
 C.   101 nF
 D.   1.1 nF

2)we have two capacitors C1=5nF ,C2=5nF,what is the value in series  of their capacitance sums ?


 A.   1.0 nF
 B.   25  nF
 C.   2.5 nF
 D.   10  nF

3)if  the focal distance of a lens is 2m. then the lens is :

A.  -1/2 diopter converging lens
B.   1/2 diopter converging lens
C.  -1/2 diopter diverging lens
D.   1/2 diopter diverging lens

4)if an object run at a speed 100 m/s  for  5 seconds ,what is the distance traveled by the this object ?

A. 50  m
B. 100 m
C. 200 m
D. 500 m

5)name this formula ,$n_{1}sin{\theta_{1}}=n_{2}sin\theta_{2} $

A.Newton's law
B.Amper's law
C.Snell's law
D.coulomb's law


6)one ball make cirular motion velocity V=12 m/s ,radius r =10 m
what is the angular  velocity :

A. 12 rd/s
B. 1.2 rd/s
C. 120 rd/s
D. 1 rd/s
7)A bird  flies  in 72km/hour , how far can flies in 20 seconds?

A. 20 m
B. 40 m
C. 200 m
D. 400m

8)name this $F=-k\Delta{x}$

A.Amper's law
B.Hook's law
C.newton' law
D.coulomb' law

9)what is the energy stored in a 1 $\mu{F}$ capacitor charged at 2kV

A. 5 j
B. 3.2 j
C. 4 j
D. 6 j


10) the electric field of very long straight wire is?


A.$ E=\lambda /4\pi \epsilon_{0}d$
B.$ E=\lambda/2\pi\epsilon_{0}d$
C.$E=\lambda/\pi\epsilon_{0}d$
D.$E=2\lambda/\pi\epsilon_{0}d$


Answer key
1.B
2.C
3.B
4.D
5.C
6.B
7.D
8.B
9.C
10.B