PHY191 TMA 3 SOLUTIONS 2019_2

Question
If two values have equal unit of measurement, they are therefore said to be

Answer
equally precise



Question
Relative error is

Answer
the ratio of possible error to the total measurement



Question
Which of the following measurement done with meter rule is more precise

Answer
19.87 cm



Question
Which of these expression is nonlinear

Answer
y = ax²



Question
Which of these expression is linear

Answer
y = ax



Question
If a rearrangement is done on the expression PV = K , a linear relation obtained is

Answer
P = K/V



Question
If the value of P in Boyle's law which states that PV = K are plotted against V

Answer
a non-linear relationship is obtained



Question
Indicate which of the following measurement is equally precised

Answer
16.5 s or 3.21 s



Question
Which of the following statement is correct?

Answer
Non-linear equations can be reduced to linear equation



Question
If b = zero in an equation y = mx + b, then y is

Answer
directly proportional to x



Question
Which of the following equation shows that the gragh has a negative slope

Answer
y = - mx + b



Question
If m and b are constants in the graph of y = mx + b . The value of the constant b represents

Answer
intercept on the graph



Question
If m and b are constants in the graph of y = mx + b . The value of the constant m represents

Answer
gradient of the graph



Question
If the value of x in the equation y = mx + b is zero. Find the value of y

Answer
y = b



Question
The equation y = mx + b represents the

Answer
linear graph that does not pass through the origin



Question
In the equation y = mx + b, m and b are

Answer
constants



Question
Which of these equations will give a linear graph that passes through the origin

Answer
y = mx



Question
The relationship between any two physical quatities can be determined through the use of

Answer
graph



Question
M which is the constant value in the graph of y = mx represents the

Answer
slope/gradient of the graph



Question
If y is plotted on the vertical axis and x on the horizontal axis in equation y = mx, the slope is

Answer
m which is the constant value



Question
In equation y = mx

Answer
independent varible



Question
The equation y = mx represents the

Answer
linear graph passing through the origin



Question
Which of the following is correct about types of graph

Answer
all of the options



Question
One of the following is not an importance of graph

Answer
It cannot be used to determine the values other than those actually measured



Question
The two types of variables that can be measured are

Answer
dependent and independent variables



Question
Graphs can be used to

Answer
all of the options



Question
The derived quatities that can be measured in an experiment include the following except

Answer
mass



Question
The fundamental quantities that can be measured include the following except

Answer
volume



Question
The constants that can be measured through experiment include the following except

Answer
length of a wire



Question
Measurements enable man to

Answer
all the options



Question
If two values have equal unit of measurement, they are therefore said to be

Answer
equally precise



Question
Relative error is

Answer
the ratio of possible error to the total measurement



Question
Which of the following measurement done with meter rule is more precise

Answer
19.87 cm



Question
Which of these expression is nonlinear

Answer
y = ax²



Question
Which of these expression is linear

Answer
y = ax



Question
If a rearrangement is done on the expression PV = K , a linear relation obtained is

Answer
P = K/V



Question
If the value of P in Boyle's law which states that PV = K are plotted against V

Answer
a non-linear relationship is obtained



Question
Indicate which of the following measurement is equally precised

Answer
16.5 s or 3.21 s



Question
Which of the following statement is correct?

Answer
Non-linear equations can be reduced to linear equation



Question
If b = zero in an equation y = mx + b, then y is

Answer
directly proportional to x



Question
Which of the following equation shows that the gragh has a negative slope

Answer
y = - mx + b



Question
If m and b are constants in the graph of y = mx + b . The value of the constant b represents

Answer
intercept on the graph



Question
If m and b are constants in the graph of y = mx + b . The value of the constant m represents

Answer
gradient of the graph



Question
If the value of x in the equation y = mx + b is zero. Find the value of y

Answer
y = b



Question
The equation y = mx + b represents the

Answer
linear graph that does not pass through the origin



Question
In the equation y = mx + b, m and b are

Answer
constants



Question
Which of these equations will give a linear graph that passes through the origin

Answer
y = mx



Question
The relationship between any two physical quatities can be determined through the use of

Answer
graph



Question
M which is the constant value in the graph of y = mx represents the

Answer
slope/gradient of the graph



Question
If y is plotted on the vertical axis and x on the horizontal axis in equation y = mx, the slope is

Answer
m which is the constant value



Question
In equation y = mx

Answer
independent varible



Question
The equation y = mx represents the

Answer
linear graph passing through the origin



Question
Which of the following is correct about types of graph

Answer
all of the options



Question
One of the following is not an importance of graph

Answer
It cannot be used to determine the values other than those actually measured



Question
The two types of variables that can be measured are

Answer
dependent and independent variables



Question
Graphs can be used to

Answer
all of the options



Question
The derived quatities that can be measured in an experiment include the following except

Answer
mass



Question
The fundamental quantities that can be measured include the following except

Answer
volume



Question
The constants that can be measured through experiment include the following except

Answer
length of a wire



Question
Measurements enable man to

Answer
all the options

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