EXPERIMENT 5
ENERGY AND ITS CONVERSION
OBJECTIVE
To verify the concept of energy conversion and conservation.
PROCEDURE
1. Access the simulation package thru https://javalab.org/en/mechanical_energy_en/.
2. Tick SPRING and set the mass value assigned for your group listed below.
GROUP NUMBER MASS (kg)
1 2
2 4
3 6
4 7
5 8
6 10
3. Starting from rest and setting the height equal to 1m, tick RUN. Record in table 1 the values for speed along
the horizontal (y = 0) and the maximum compression of the spring.
4. Repeat step 3 using the next height values.
5. Calculate the kinetic, potential and mechanical energy values at each point of the path. Point A is at the
highest point of the path, B is at the equilibrium position of the spring and C is at the spring’s maximum
compression. Record the values in table 2.
6. Using MS Excel, plot a bar graph of height (y-axis) versus the energies (x-axis). The energies involved are
gravitational potential energy at A (1st color), kinetic energy at B (2nd color) and elastic potential energy at C (3rd
color). Labels should be clearly placed.
, DATA SHEET
EXPERIMENT 5
ENERGY AND ITS CONVERSION
DATA
Table 1
Mass of the cart: _______8kg_________ Spring Constant: ______50N/m______
HEIGHT HORIZONTAL VELOCITY COMPRESSION DISTANCE
(m) (m/s) (m)
1 4.427 m/s 1.771 m
2 6.261 m/s 2.504 m
3 7.668 m/s 3.067 m
4 8.854 m/s 3.542 m
5 9.899 m/s 3.96 m
6 10.844 m/s 4.338 m
Table 2
GRAVITATIONAL ELASTIC MECHANICA MECHANICA
KINETIC MECHANICAL
HEIGHT POTENTIAL POTENTIAL L ENERGY at L ENERGY at
ENERGY at B ENERGY at A
(m) ENERGY at A ENERGY at C B C
(J) (J)
(J) (J) (J) (J)
1 78.4 J 78.4 J 78.4 J 235.2 J 235.2 J 235.2 J
2 156.8 J 156.8 J 156.8 J 470.4 J 470.4 J 470.4 J
3 235.2 J 235.2 J 235.2 J 705.6 J 705.6 J 705.6 J
4 313.6 J 313.6 J 313.6 J 940.8 J 940.8 J 940.8 J
5 392 J 392 J 392 J 1, 176 J 1, 176 J 1, 176 J
6 470.4 J 470. 4 J 470. 4 J 1, 411.2 J 1, 411.2 J 1, 411.2 J
*Show here your solution for all computations based on the table.
Gravitational Potential Energy at A solutions:
ENERGY AND ITS CONVERSION
OBJECTIVE
To verify the concept of energy conversion and conservation.
PROCEDURE
1. Access the simulation package thru https://javalab.org/en/mechanical_energy_en/.
2. Tick SPRING and set the mass value assigned for your group listed below.
GROUP NUMBER MASS (kg)
1 2
2 4
3 6
4 7
5 8
6 10
3. Starting from rest and setting the height equal to 1m, tick RUN. Record in table 1 the values for speed along
the horizontal (y = 0) and the maximum compression of the spring.
4. Repeat step 3 using the next height values.
5. Calculate the kinetic, potential and mechanical energy values at each point of the path. Point A is at the
highest point of the path, B is at the equilibrium position of the spring and C is at the spring’s maximum
compression. Record the values in table 2.
6. Using MS Excel, plot a bar graph of height (y-axis) versus the energies (x-axis). The energies involved are
gravitational potential energy at A (1st color), kinetic energy at B (2nd color) and elastic potential energy at C (3rd
color). Labels should be clearly placed.
, DATA SHEET
EXPERIMENT 5
ENERGY AND ITS CONVERSION
DATA
Table 1
Mass of the cart: _______8kg_________ Spring Constant: ______50N/m______
HEIGHT HORIZONTAL VELOCITY COMPRESSION DISTANCE
(m) (m/s) (m)
1 4.427 m/s 1.771 m
2 6.261 m/s 2.504 m
3 7.668 m/s 3.067 m
4 8.854 m/s 3.542 m
5 9.899 m/s 3.96 m
6 10.844 m/s 4.338 m
Table 2
GRAVITATIONAL ELASTIC MECHANICA MECHANICA
KINETIC MECHANICAL
HEIGHT POTENTIAL POTENTIAL L ENERGY at L ENERGY at
ENERGY at B ENERGY at A
(m) ENERGY at A ENERGY at C B C
(J) (J)
(J) (J) (J) (J)
1 78.4 J 78.4 J 78.4 J 235.2 J 235.2 J 235.2 J
2 156.8 J 156.8 J 156.8 J 470.4 J 470.4 J 470.4 J
3 235.2 J 235.2 J 235.2 J 705.6 J 705.6 J 705.6 J
4 313.6 J 313.6 J 313.6 J 940.8 J 940.8 J 940.8 J
5 392 J 392 J 392 J 1, 176 J 1, 176 J 1, 176 J
6 470.4 J 470. 4 J 470. 4 J 1, 411.2 J 1, 411.2 J 1, 411.2 J
*Show here your solution for all computations based on the table.
Gravitational Potential Energy at A solutions:
