Aweaver+Physlet

__**Illustration 3.2:**__ Galileo discovered that when objects began moving from rest on an inclined plane, their displacement increased at odd integers over the same time interval.

__**Exploration 3.2:**__

Position: 4.2s Velocity: 5.8s Acceleration: could not complete

A: Yes. It is possible to get the ball to the goal on the position, velocity, and acceleration settings. B: Acceleration is the most difficult control to use. Position is simple because it corresponds directly to your actions. Velocity is slightly more difficult because you have to consider two elements, and acceleration is the hardest. Its difficult to think about how fast motion is changing to navigate the ball to the goal.

__**Exploration 4.2:**__

Attraction: Towards the cursor Repulsion: Away from the cursor Both cause an increase in velocity.

__**Exploration 4.3:**__

Repulsion: 1.45s Attraction: 2.28s

A: Given an applied force, the ball moves with a net force of the original movement and applied force combined. If force is applied in the direction of original movement, acceleration increases. If force is applied in the opposite direction, deceleration occurs. B: It does not always move as expected because it is accelerating. Its difficult to to determine its movement because acceleration is constantly changing, and its hard to estimate net force based on the information given.