/2 T 2) How does a ramp (inclined plane) make a job easier? /1T 3) Is more work done in lifting the cart or using the ramp? 4) What is causing the efficiency of the inclined plane to be less than 100%? /1 T 5) Which is easier (requires less force): using a short steep, inclined plane or using a long not-so-steep inclined plane? Explain. /2 T 6) Which requires less work: using a short steep, inclined plane or using a long not-so-steep inclined plane? Explain. /2Ts the efficiency of an inclined plane depend on its angle of inclination? / 1K If I increase the angle of inclination, the efficiency of the inclined plane would increase since with a higher angle Overview: It will make the inclined plane more efficient. Sliding a crate up a ramp is usually easier than lifting it straight up. In this activity, you will measure the work done sliding a block up an incline and compare it to the work needed for a vertical lift. The height of the ramp can be adjusted to see how the required applied force changes with the angle of the incline. You will determine which angle of inclination is the most efficient and which is easiest to use. Set up: .Ad Figure 6.31 You will set up a wooden plank on one, two, three, and four books and use a spring scale to measure the force needed to slide a wooden block up the ramp. = 0. 622 05.00 + Observations: Mass: 0 67 /9 Ad: 1. 2m /1C Height (h) Applied Force Angle of Work Gravitational Efficiency (N) inclination ( J ) Potential Energy Eff = W a x100% (J) 2 books (7. 70 (m ) 1 6N 13. 680 LI BOOKS CM 1 175 6 (m )) 7.470 6 books 1 23 , 2 (M )1 2 . 4 N 11. 20 13C 13K /1C Sig figs and units Analysis and Conclusions: 1) Does it require more force to lift the Block using the ramp vs lifting it vertically? JIT