Newton's laws of motion Flashcards
What is the direct link between force and motion
Without force, there can be no motion
What is Newton’s 1st law
Law of inertia
What does Newton’s 1st law (law of inertia) state
A body continues in a state of rest or moving with constant velocity in a straight line, unless acted upon by an external force
Define inertia
Means the reluctance of a body to change its state of motion
What is Newton’s 2nd law
Law of acceleration
What does Newton’s 2nd law (acceleration) state
When a force acts on an object, the rate of change of momentum experienced by the object is proportional to the size of the force and takes place in the direction in which the force acts
What is Newton’s 3rd law
Law of action/reaction
What does Newton’s 3rd law (action/reaction) state
For every action, there is an equal and opposite reaction
What is linear motion
Movement of a body in a straight or curved line, where all parts are moving the same distance, in the same direction over the same time
Which of Newton’s laws does linear motion apply to
Newton’s 1st law
What is angular motion
Movement of a body or body part in a circular path about an axis of rotation
Which of Newton’s laws does angular motion apply to
Newton’s 1st law
What is general motion
Is a combination of linear and angular motion
