IB Physics SL A.2.1 Newton’s three laws of motion
IB Physics SL A.2.1 Newton’s three laws of motion
Apply Newton's laws to force pairs and resultant forces so you can explain motion changes in clear object-based terms.
How this is tested
- name both interacting bodies to identify a Newton's third-law pair, not two forces acting on one object
- link a non-zero resultant force in the free-body diagram to acceleration or deceleration using F=ma
- use the free-body diagram to infer that balanced forces mean constant velocity or rest, not zero forces