3.5 Newtons Laws Of Motion Flashcards Preview

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Flashcards in 3.5 Newtons Laws Of Motion Deck (10)
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1

Newtons first

A body will remain at rest or continue to move at a constant velocity until an external force acts on it

2

Newtons second

Resultant force on an object is proportional to the rate of change of momentum of the object, and the momentum change takes place in the direction of the force

3

Newtons third

If object a exerts a force on object b, object b will exert an equal and opposite force on object a

4

What is needed for Newton's third law?

Forces must be of the same type
Must be acting in opposite directions
On different objects

5

Momentum equitation

Mass x velocity

6

What is the principle of conservation of momentum?

The total momentum before a collision is always equal to the total momentum after the collision, provided that no external forces are involved

7

Define impulse

The forces of a force and time time for which it acts

8

What is impulse the same as?

Change in momentum

9

what is the area beneath a force time graph?

Impulse

10

Define force

Rate of change of momentum