Phy 191 Past Questions Page 2
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PHY 191
QUESTION NUMBER 11
The standard error in the slope of a graph is 3.0 while its range and number of readings are 0.62 and 6 respectively. The verticle width scatter is ?
A. 2.79
B. 2.88
C. 1.8
D. 10.8
ANSWER: A
QUESTION NUMBER 12
The number of significant figures in 4.07 x 10^15m is
A. 1
B. 3
C. 14
D. 15
ANSWER: B
QUESTION NUMBER 13
A small bob of mass 20g oscilliates as a simple pendulum with amplititude 5cm and a period of 2sec, find the fvelocity of bob when the velocity is maximum
A. 0.05m/s
B. 3.14m/s
C. 0.16m/s
D. 0.001m/s
ANSWER: C
QUESTION NUMBER 14
A vapour whose molecules are in dynamic equillibrium with those of its liquids is said to be
A. Saturated
B. Unsaturated
C. Gaesous
D. Diffused
ANSWER: A
QUESTION NUMBER 15
The instrument used in measuring relative density is
A. Hygrometer
B. Hydrometer
C. Thermometer
D. Barometer
ANSWER: A
QUESTION NUMBER 16
if a simple pendulum performing SHM swings to maximum apllititude, its kinetic energy is
A. zero
B. maximum
C. twice its potential
D. equal to its potential
ANSWER: A
QUESTION NUMBER 17
in an experiment, the vernier calliper was used to measure the breath to be 2.40cm and the thickness to be 0.45cm of the meter rule. find the volume of the meter rule?
A. 125.0cm
B. 105.0cm
C. 108.0cm
D. 109.0cm
ANSWER: C
QUESTION NUMBER 18
supposed the formula relating E,R,r and i is I= E/R+r, where i and R are variables and E and r are constants ….. transform the above equations to form y=mx+c
A. 1/i = 1/E R + r/E
B. r/E
C. r/R
D. IE
ANSWER: A
QUESTION NUMBER 19
supposed the formula relating E,R,r and i is I= E/R+r, where i and R are variables and E and r are constants— what is the equivalent of y?
A. 1/I
B. R
C. r/E
D. 1/E
ANSWER: A
QUESTION NUMBER 20
supposed the formula relating E,R,r and i is I= E/R+r, where i and R are variables and E and r are constants— what is the equivalent of x
A. 1/I
B. r/E
C. R
D. 1/E
ANSWER: C
