Monday, October 18, 2010

Right Face

1. The robot turned too far to the right.
2. The Motor C spun.
3. Motor C spun forward While Motor B did not spin.
4. It turned right.
5. It went about one-third of a full turn, or about 120 degrees.
6. The robot pivots on the right wheel because that wheel is not moving.
7.
First Block: Run Motor C forward.
Second Block: Do not run Motor B.
Third Block: Have Motor C wait for 720 degrees.
Fourth Block: Stop Motor C.
Fifth Block. Stop Motor B.
8.
i. The robot turned right 90 degrees or swung left 270 degrees. You can tell by looking at the robot's position relative to the arrow.
ii. It turned 3/4 of a full turn.
iii. It turned 1/4 of a full turn.
9.
i. To turn the same amount with smaller wheels, the number of rotations will have to be greater. It will be more precise. With bigger wheels, the turning distance will be greater.
ii. Yes. The amount of traction that the robot can get on the ground will influence the effectiveness of the turn. If the surface is slippery, the tires will not be able to get traction and slide. Uneven ground could hinder its ability to move.
10.
i. Yes.
ii. First Block: Stop Motor C.
Second Block: Run Motor B backwards
Third Block: Wait for 720 degrees.
Fourth and Fifth Blocks: Stop both motors.
11. The first was changed to stop Motor C instead of forward. The second block was set tor run forward Motor B. The wait block was changed to B instead of C. The last two blocks remained the same.
12. Yes.
First Block Motor C moves backward.
Second Block: Stop Motor B.
Third Block: Wait for 720 degrees.
Fourth and Fifth Blocks: Stop both motors.
13. The point turn takes faster and takes less room to complete. One motor moves forward while the other moves backwards. A swing turn is a gradual turn. One motor runs while the other is stationary.
14.
i. A swing turn is more useful for turning a corner.
ii. A point turn is more useful for following a path or approaching an obstacle.

No comments:

Post a Comment