07 - Laws of Motion and Momentum Flashcards

1
Q

Newton’s first law of motion

A

a body will remain at rest or continue to move with constant velocity unless acted upon by a resultant force

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2
Q

Newton’s second law of motion

A

rate of change of momentum of an object is directly proportional to the resultant force and takes place in the direction of the force

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3
Q

Newton’s third law of motion

A

when two objects interact, each exerts an equal but opposite force on the other during the interaction

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4
Q

linear momentum

A

product of mass and velocity of a particle, measured in kgms^-1 or Ns

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5
Q

closed system

A

an isolated system that has no interaction with its surroundings

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6
Q

principle of conservation of momentum

A

total momentum of a system remains the same before and after a collision

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7
Q

perfectly elastic collision

A

a collision in which no kinetic energy is transferred

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8
Q

inelastic collision

A

collision in which kinetic energy is transferred to other forms

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