What Factors Influence the Bending of a Wooden Block with Suspended Masses?

[ib.pcm.jns]

A wooden block is clamped at one end so that it projects horizontally from the clamp. A mass is suspended from the block causing it to bend. Investigate one factor that affects the amount of bending.

I have to 1. Find a research Question
2. Find a Hypothesis
3. Identify dependant, independant and controlled variables.
4. Also deign an experiment to test the hypothesis.

I have done some work and am thinking about the factor that affects the bending..like extension of spring, and acceleration due to gravity. So with those factors or if you have any better so i can design a lab for it..can you pls help find a research question and hypotheses as well as the variables.
THnx

 

[jbsteele]

Research Question: How does the mass suspended from a wooden block clamped at one end affect the amount of bending?Hypothesis: Increasing the mass suspended from the wooden block clamped at one end will increase the amount of bending.Independent Variable: Mass suspended from the wooden blockDependent Variable: Amount of bendingControlled Variables: Length of the wooden block, size of the clamp, gravitational force (acceleration due to gravity)Experiment:1. Securely clamp one end of the wooden block and make sure that it projects horizontally.2. Suspend different masses from the other end of the wooden block and measure the amount of bending for each mass. 3. Record the results and analyze them to determine whether or not increasing the mass will increase the amount of bending.

 

[kerimek]

Research Question: How does the mass suspended from a wooden block affect the amount of bending?

Hypothesis: Increasing the mass suspended from the wooden block will result in a greater amount of bending.

Dependent variable: Amount of bending of the wooden block
Independent variable: Mass suspended from the wooden block
Controlled variables: Type of wooden block, length of wooden block, clamp position, height of suspension, force applied to suspend the mass, temperature, and humidity.

Experiment design:

1. Gather materials: wooden block, clamp, weights, ruler, protractor, stopwatch.

2. Set up the wooden block in the clamp so that it projects horizontally.

3. Measure and record the length of the wooden block and the distance from the clamp to the end of the block.

4. Place the protractor at the end of the wooden block and use it to measure the initial angle of deflection.

5. Add a known mass to the end of the block and measure the new angle of deflection.

6. Repeat steps 4 and 5 for different masses, increasing the mass each time.

7. Record the angle of deflection for each mass.

8. Calculate the amount of bending by subtracting the initial angle from the final angle for each mass.

9. Plot a graph with mass on the x-axis and amount of bending on the y-axis.

10. Analyze the data and draw conclusions about the relationship between the mass suspended and the amount of bending.

11. Repeat the experiment at least three times to ensure accuracy and reliability of the results.

12. To further investigate the factor of extension of spring, repeat the experiment with different types of springs or by adjusting the tension of the spring used.

13. To investigate the effect of gravity, repeat the experiment at different locations with varying levels of gravity (such as at different elevations).

14. Compare and analyze the results to determine the significance of the factor being investigated in relation to the amount of bending.