Page 29 - Microsoft Word - SCI KS2 Y3 Y4 gs.doc

Forces – week 9

When one object moves over another there is a force called ________________
between them. Friction tries to stop the object moving.

Friction with the ground is important for walking and running. Perform the following

experiments to see who has the safest shoes in the class.

Experiment 1

Aim: To see whose shoes have the safest sole on different surfaces.

Apparatus: One of everyone’s shoes, piece of carpet, tray, piece of lino or smooth

flooring material, soil or a piece of turf.

Method: Line up some different shoes on a tray covered with carpet and tilt the

tray. Observe which shoe is the fastest and which is the slowest.

The fastest shoe was _________________. The slowest shoe was _________________.

Cover the tray with smooth flooring material and try the experiment again.

The fastest shoe was _________________. The slowest shoe was _________________.

Cover the try with soil or grass and repeat the experiment.

The fastest shoe was _________________. The slowest shoe was _________________.

The safest shoe on most surfaces was __________________________________.

Draw a boot suitable for
climbing Mount Everest.

Boys wear football
boots because

___________________
___________________ Draw an ice skate and try

___________________ to find out why we wear

___________________ ice skates rather than
smooth, flat shoes on ice.

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