Laboratory activities:

Lab Activity #1: Extracting information from a graph:

Look at Figure # 5 and answer the questions that follow.

1.Name the variables represented in the x and y axes.

x-axis variable name: _______________;y-axis variable name: ________________

2.What are the units used in the x and y axes?

x-axis unit: _________________;y-axis unit: _________________

3.Calculate the scale that was used in the x and y axes? Show your work.

x-axis scale calculation: _____________________________________________________

y-axis scale calculation: _____________________________________________________

4.Fill the following table with the values of elongation and force for the first and last data points.

	Firstdata point	Last data point
Elongation ( cm )
Force ( N )

5.What value of force is predicted by the trendline for the elongation value listed below?

Elongation ( cm )	7
Predicted Force ( N )

6.What value of elongation is predicted by the trendline for the force value listed below?

Force ( N )	35
Predicted elongation (cm )

7.Calculate the slope of the trendline.

Indicate below the coordinates of the points that you will use to calculate the slope.

Point 1 coordinates: ( elongation 1, force 1 ) = ( ___________, ___________)

Point 2 coordinates: ( elongation 2, force 2 ) = ( ___________, ___________)

Show below your slope calculation:

_____________________________________________________________________________

Lab Activity #2: Constructing a graph. Earth's gravitational acceleration:

The following data represents the speed of a steel ball falling from the Freedom Tower measured at different time instants.

Time ( s )	1	3	5	7	9
Speed ( m/s )	8	34	52	66	86

Your task is to plot the data in Figure # 6 using the x-axis for time and the y-axis for speed.

1.Write a suitable title.2.Write the name of the axes and their units in parenthesis.3.Design the scale for each axis.SHOW YOUR WORK.

Time axis scale design:

Data range:__________________________; Divisions available:__________________

V =Scale:_______________________

Speed axis scale design:

Data range:__________________________; Divisions available:__________________

V =Scale:______________________

4.Indicate the time and speed axes scales in the graph.5.Indicate the axes values in both axes.6.Plot the data points.7.Draw a trendline.8.Calculate the slope of the trendline.

Indicate below the coordinates of the points that you will use to calculate the slope.

Point 1 coordinates: ( time 1, speed 1 ) = ( _______________, ______________)

Point 2 coordinates: ( time 2, speed 2 ) = ( _______________, ______________)

Show below your slope calculation:

______________________________________________________________________________

The slope is thegravitational accelerationclose to the surface of Earth calculated from this experiment.

Lab Activity #3: Constructing a graph.Moon'sgravitational acceleration:

A bullet is shot down close to the Moon's surface and measurement of time and speed are taken with the following results.

Time ( s )	0	10	20	30	40
Speed ( m/s )	402	415	433	448	466

Your task is to plot the data in Figure # 7 using the x-axis for time and the y-axis for speed.

1.Write a suitable title.2.Write the name of the axes and their units in parenthesis.3.Design the scale for each axis.SHOW YOUR WORK.

Time axis scale design:

Data range:__________________________; Divisions available:__________________

V =Scale:_______________________

Speed axis scale design:

Data range:__________________________; Divisions available:__________________

V =Scale:______________________

4.Indicate the time and speed axes scales in the graph.5.Indicate the axes values in both axes.6.Plot the data points.7.Draw a trendline.8.Calculate the slope of the trendline.

Indicate below the coordinates of the points that you will use to calculate the slope.

Point 1 coordinates: ( time 1, speed 1 ) = ( _______________, ______________)

Point 2 coordinates: ( time 2, speed 2 ) = ( _______________, ______________)

Show below your slope calculation:

______________________________________________________________________________

The slope is thegravitational accelerationclose to the surface of the Moon calculated from this experiment.

1