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Question 17N.2.SL.TZ0.1a

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Date November 2017 Marks available [Maximum mark: 2] Reference code 17N.2.SL.TZ0.1a
Level SL Paper 2 Time zone TZ0
Command term Draw Question number a Adapted from N/A
a.
[Maximum mark: 2]
17N.2.SL.TZ0.1a

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

(a)

Draw the free-body diagram for the sledge at the position shown on the snow slope.

[2]

Markscheme

arrow vertically downwards labelled weight «of sledge and/or girl»/W/mg/gravitational force/Fg/Fgravitational AND arrow perpendicular to the snow slope labelled reaction force/R/normal contact force/N/FN

friction force/F/f acting up slope «perpendicular to reaction force»

Do not allow G/g/“gravity”.

Do not award MP1 if a “driving force” is included.

Allow components of weight if correctly labelled.

Ignore point of application or shape of object.

Ignore “air resistance”.

Ignore any reference to “push of feet on sledge”.

Do not award MP2 for forces on sledge on horizontal ground

The arrows should contact the object

 

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