Conservation of Momentum (Grade 12 NSC Matric Physical Sciences): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What happens to total momentum in an isolated system during a collision?
What happens to total momentum in an isolated system during a collision?
It remains constant
What defines an isolated system?
What defines an isolated system?
No external forces & no matter exchange
Why do internal forces in a collision not change the total momentum?
Why do internal forces in a collision not change the total momentum?
They form Newton's 3rd law pairs & cancel
What is the formula for total momentum of a system?
What is the formula for total momentum of a system?
Two 0.3 kg balls approach: one at 1 m/s right, other at 0.8 m/s left. Total momentum (right +ve)?
Two 0.3 kg balls approach: one at 1 m/s right, other at 0.8 m/s left. Total momentum (right +ve)?
0.06 kg·m·s⁻¹
In a Newton's cradle, if one ball strikes stationary balls, what happens at the other end?
In a Newton's cradle, if one ball strikes stationary balls, what happens at the other end?
One ball swings out at same speed
Can external forces change the total momentum of a system?
Can external forces change the total momentum of a system?
Yes, they lack 3rd law partners in system
Why must you choose a positive direction when solving momentum problems?
Why must you choose a positive direction when solving momentum problems?
Momentum is a vector with direction
When is momentum conserved in a collision?
When is momentum conserved in a collision?
When the system is isolated
What is a system in physics?
What is a system in physics?
A configuration of objects we study