Momentum and Impulse Flashcards

1
Q

Define momentum

A

The quantity of motion possessed by a moving body

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2
Q

What is the equation of momentum and give the units in the equation

A

Momentum(kgm/s)=mass(kg)xvelocity(m/s)

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3
Q

Define impulse

A

The time taken for a force to be applied to an object or a body

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4
Q

What is the formula for impulse and give the unit

A

Impulse(N/s)=Force(N)xtime(s)

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5
Q

What is the first direction that an impulse graph will always go

A

Downwards (neagtive) then upwards (positive)

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6
Q

Interpret the following situations on an impulse time graph for a 100m sprint and mention where each might occur in the race
1.Area below X-axis>Area above X-axis
2.Area below X-axis=Area above X-axis
3.Area below X-axis<Area above X-axis

A

1.Deceleration (end of the race)
2. Constant velocity (middle of the race)
3. Acceleration (start of the race)

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