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Lesson�5:�The�Ice�Hockey�Stick
 • Theirpartnermarksthestartandstoplinesand
measures the distances moved by the head of the
hockey stick and their partner’s hand.
 • Theirwristmovementisessentiallythesameasadoor
opening on a hinge.
Teacher’s Notes
The fulcrum is the wrist, the effort
is provided by the lower hand on the
stick and the load is the ball of paper
or ice hockey puck.
It remains at rest/stationary until it
is hit with the ice hockey stick. It
then moves away very quickly in the
direction in which it was hit, gradually
slows down and finally stops.
 • Askeachgrouptousedotstickersormaskingtape
to label the positions of the fulcrum (F), load (L) and
effort (E) as well as the direction of the forces involved
(using arrows) on their model.
Whole Class (Optional Activity)
 • Talkaboutwhathappenstotheballofpaperorice
hockey puck before and after it is hit with the stick.
 • Discusstheconceptofbalancedandunbalancedforces.
Ask the children to describe and explain the effect of
balanced and unbalanced forces in this activity.
Just before the paper ball is hit,
its weight will be balanced by the
reaction of the floor that supports
it. There are no other forces acting
on the paper ball so it remains
stationary until it is hit by the
hockey stick.
The head of the hockey stick is
moving very quickly when it hits
the paper ball.
When a force is applied to the
paper ball by the moving hockey
stick, it moves off at a fast speed
but then slows because of friction
between it, the floor and air
resistance. Friction and air
resistance are forces working in
the opposite direction to the
movement of the ball. Why might
a hockey puck move further on
ice than on a floor?
Education
®
33


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