Conservation of Momentum (Leaving Cert Applied Maths): Quizzes
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Practise the questions
13 questions from this quiz
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Practise the questions
13 questions from this quiz
What is the formula for momentum?
What is the formula for momentum?
What are the units of momentum?
What are the units of momentum?
kg m/s
When is momentum conserved in a system?
When is momentum conserved in a system?
When no external forces act
What does impulse represent?
What does impulse represent?
Change in momentum
What are the units of impulse?
What are the units of impulse?
Ns
In a collision, how do impulses on two objects compare?
In a collision, how do impulses on two objects compare?
Equal magnitude, opposite direction
A 2 kg hammer at 2 m/s hits a 0.5 kg stake at rest. If they stick, what is their final speed?
A 2 kg hammer at 2 m/s hits a 0.5 kg stake at rest. If they stick, what is their final speed?
1.6 m/s
In 2D collisions, how must momentum be treated?
In 2D collisions, how must momentum be treated?
x and y components separately
What is a perfectly inelastic collision?
What is a perfectly inelastic collision?
Objects stick together
For a 2D collision with m/s and m/s, what is the resultant speed?
For a 2D collision with m/s and m/s, what is the resultant speed?
16.67 m/s
Why is direction important in momentum problems?
Why is direction important in momentum problems?
Momentum is a vector quantity
In connected systems, when does momentum conservation apply?
In connected systems, when does momentum conservation apply?
At the instant of change