Measurement and Experimentation PHYSICS - Measurement and Experimentation

Which is not a unit of distance?

Which of the following is a fundamental unit?

Which of the following is not a fundamental unit?

Which of the following do not affect the time period of a simple pendulum?
(a) mass of bob
(b) size of bob
(c) effective length of pendulum
(d) acceleration due to gravity
(e) amplitude.

What is the function of ratchet in screw gauge?

For what range of measurement is micrometre screw gauge used?

State three uses of graph.

(a) What is a best fit line for a graph?
(b) What does best fit line show regarding the variables plotted and the work of experimenter?

State two important precautions for drawing a graph line.

State three important precautions which must be followed while plotting points on a graph.

What do you understand by (a) amplitude and (b) frequency of oscillations of simple pendulum?

(a) What do you understand by the term constant of proportionality?
(b) How can proportionality constant be determined from the best fit straight line graph?

(a) State how will you choose a scale for the graph.
(b) State the two ratios of a scale, which are suitable for plotting points.
(c) State the two ratios of a scale, which are not suitable for plotting points.

(a) What do you understand by the term graph?
(b) What do you understand by the terms (i) independent variable, (ii) dependent variable?
(c) Amongst the independent variable and dependent variable, which is plotted on X- axis?

How does a graph help in determining the proportional relationship between two quantities?

(a) Name the two factors on which time period of a simple pendulum depends.
(b) Name the devices commonly used to measure
(i) mass and
(ii) weight of a body.

Define the following in connection with a simple pendulum.
(a) Time period
(b) Oscillation
(c) Amplitude
(d) Effective length.

(a) Define simple pendulum.
(b) State two factors which determine time period of a simple pendulum.
(c) Write an expression for the time period of a simple pendulum.

How do you account for (a) positive zero error (b) negative zero error, for calculating correct diameter of wires?

One micrometre _______ m .

One year ___________ sec .

One mean solar day __________ sec .

One light year is equal to _____________ .

The unit is which we measure the quantity is called __________ .