INCLINED PLANE

• A. A (1/2) and B (1/4)

• B. A (2) and B (4)

• C. A (1.5) and B (0.5)

• D. A (2.5) and B (4)

What is the mechanical advantage of this machine?

• A. 4

• B. 3

• C. 2

• D. 0.33

How does a ramp (inclined plane) make work easier?

• A. changing the direction of both the effort (input) force and the output force (load).

• B. decreasing the size of the effort force needed, by increasing the distance.

• C. increasing the size of the effort force needed, by increasing the distance.

• D. None

Students pulled the same mass up an inclined plane that was 20 cm, 30 cm, and 40 cm long. Each time, they used a spring scale to measure the force needed to pull the mass up the inclined plane. What did they conclude?

• A. Less force was needed on the 20 cm plane

• B. The least amount of force was needed on the 40 cm inclined plane.

• C. More force was needed on the 40 cm inclined plane.

• D. The least amount of force was needed on the 30 cm inclined plane.

The greatest amount of force is required to move the metal block up which inclined plane?

• A. A

• B. B

• C. C

• D. D

Calculate the greatest mechanical advantage of Borobudur stairs! You may see also link here: http://konservasiborobudur.org/download/laporan/Laporan%20Kajian/2010/Kajian%20perbaikan%20tangga-Hari%20S.pdf