Tech 2 Blizzard Bag # 1 Due Feb. 13.
On a computer go to the website
http://aspire.cosmic-ray.org/Labs/Machines/
Answer the following questions.
1.
After you have balanced Harry and Pic, you gave pic a mechanical advantage. In your own words, what is
mechanical advantage?
2. In what 3 ways can simple machines give us a mechanical advantage?
3. In the boxes, list the 6 simple machines, make a drawing of each, and give a real life example of each.
Activity: The wedge
Prediction: Does the shape of the wedge matter? Why?
Do the wedge activity on the website and make a line graph of your results.
4. Look at your graph for any patterns that you may see. Write a general statement relating the type of wedge to
the amount of weight required to break the stone.
5. How did the force which was applied to the wedge change as you changed the length of the wedge?
6.
For this lab, the width of the wedge was fixed(12 cm). What effect do you think increasing the width of the
wedge would have on the force required? Decreasing width?