Motion and Interaction

Front

Key question for the activity

Back

How is an object's motion affected by an interaction?

Front

Effect of hand interaction on cart's motion

Back

Speed (or direction) changed quickly

Front

Cart's motion without hand interaction

Back

Motion did not change, or changed very slowly

Front

Speed change due to interaction

Back

Occurs over a definite period of time

Front

Speed versus Time graph

Back

Front

Speed-time graph for a quick push

Back

Definite slope, speed changes over time

Front

Speed change during a push

Back

Increases only while contact is maintained

Front

Luisa's perspective on speed change

Back

Speed continues to increase after contact

Front

Evidence supporting Daryl's view

Back

Slow-motion movie showed speed stopped increasing after hand lost contact

Front

Reason for cart speed stopping

Back

Nothing was pushing it anymore