Edexcel IGCSE Physics 1.25P Momentum equation
Practise using p = mv in collision, turbine and spacecraft contexts, including rearranging values and giving correct momentum units.
- Syllabus
- First assessment 2019
- Course
- Physics 4PH1
Exam points
- state and apply p = mv using mass in kg and velocity in m s^-1
- calculate momentum or change in momentum from initial and final velocities
- give momentum units as kg m s^-1 and handle values in standard form or km s^-1 conversions
1.25P Momentum equation question 1
The diagram shows a child's toy for accelerating steel balls.
This is how the toy works.
- the toy uses three identical steel balls, each with a mass of 4.1 g
- ball A moves towards the magnet
- ball B is in contact with the magnet
- balls B and C are initially at rest and are in contact with each other
- when ball A collides with the magnet, ball C moves away from the magnet
Ball A moves towards the magnet with an initial velocity of 0.15 m/s.
Calculate the initial momentum of ball A.
initial momentum = ............ kg m/s
All question bank results loaded