IB Physics HL A 2 17 Impulse Questions

Practise analysing HL impulse and momentum data, including variable force graphs, collisions and rocket-engine dynamics.

Exam points

calculate impulse as the change in linear momentum of a system
use force–time data or average force to determine impulse and momentum change
apply signed impulse–momentum reasoning to collisions, rebounds and changing-force problems

Learn this topic

Study A.2.17—Impulse conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

[Maximum number: 3]

A girl on a sledge is moving down a snow slope at a uniform speed.

Figure for Question IB Physics HL A 2 17 Impulse Questions question 1 — IB Physics HL

The girl chooses to jump so that she lands on loosely-packed snow rather than frozen ice. Outline why she chooses to land on the snow.

same change in momentum/impulse;
the time taken to stop would be greater with the snow

$F=\frac{\Delta p}{\Delta t}$ , therefore F is smaller with the snow

OR

force is proportional to rate of change of momentum, therefore F is smaller with the snow

All question bank results loaded

Learn this topic

IB Physics HL A 2 17 Impulse Questions question 1