Forces and Motion

≈ 32 min

Forces are pushes or pulls measured in newtons. Balanced forces produce no change in velocity; an unbalanced resultant changes motion.

Core checkpoint: Draw all forces acting on one chosen object before deciding whether they balance.

Which statement best captures the core checkpoint for Forces and Motion?

Draw all forces acting on one chosen object before deciding whether they balance.

Choose a solution before defining the evidence.

Ignore units, limits and boundary cases.

Assume the first result applies in every context.

Enter the highlighted key term for Forces and Motion. Checkpoint clue: What does a non-zero resultant force do?

Which lesson most directly explains the concepts used in this application?

Seat belts and safe braking distances depend on changes in motion and force.

Forces and Motion

Electricity and Energy

Energy Use and Cost

none of these concepts