DP Physics (first assessment 2025)

Question EXE.1A.HL.TZ0.2

Date	Example questions Example questions	Marks available	[Maximum mark: 1]	Reference code	EXE.1A.HL.TZ0.2
Level	HL	Paper	1A	Time zone	TZ0
Command term		Question number	2	Adapted from	N/A

[Maximum mark: 1]

EXE.1A.HL.TZ0.2

Ball 1 collides with an initially stationary ball 2 of the same mass. After the collision, the balls move with speeds $v_{1}$ and $v_{2}$ . Their velocities make angles $θ_{1}$ and $θ_{2}$ with the original direction of motion of ball 1.

What is $\frac{v_{1}}{v_{2}}$

A. $\frac{\sin θ_{2}}{\sin θ_{1}}$

B. $\frac{\sin θ_{1}}{\sin θ_{2}}$

C. $\frac{\cos θ_{2}}{\cos θ_{1}}$

D. $\frac{\cos θ_{1}}{\cos θ_{2}}$

[1]

Markscheme

Syllabus sections

A. Space, time and motion

A. Space, time and motion » A.2 Forces and momentum

Question EXE.1A.HL.TZ0.2

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