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Broad Topics > Mechanics > Moment of a force

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Swings and Roundabouts

Stage: 4 Challenge Level: Challenge Level:2 Challenge Level:2

If you were to set the X weight to 2 what do you think the angle might be?

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Wobbler

Stage: 5 Challenge Level: Challenge Level:3 Challenge Level:3 Challenge Level:3

A cone is glued to a hemisphere. When you place it on a table in what position does it come to rest?

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Balance Point

Stage: 4 Challenge Level: Challenge Level:3 Challenge Level:3 Challenge Level:3

Attach weights of 1, 2, 4, and 8 units to the four attachment points on the bar. Move the bar from side to side until you find a balance point. Is it possible to predict that position?

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Inside Outside

Stage: 4 Challenge Level: Challenge Level:1

Balance the bar with the three weight on the inside.

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Balances and Springs

Stage: 4 Challenge Level: Challenge Level:1

Balancing interactivity with springs and weights.

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Balancing 3

Stage: 3 Challenge Level: Challenge Level:3 Challenge Level:3 Challenge Level:3

Mo has left, but Meg is still experimenting. Use the interactivity to help you find out how she can alter her pouch of marbles and still keep the two pouches balanced.

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Balancing 2

Stage: 3 Challenge Level: Challenge Level:2 Challenge Level:2

Meg and Mo still need to hang their marbles so that they balance, but this time the constraints are different. Use the interactivity to experiment and find out what they need to do.

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Balancing 1

Stage: 3 Challenge Level: Challenge Level:1

Meg and Mo need to hang their marbles so that they balance. Use the interactivity to experiment and find out what they need to do.

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Overarch 2

Stage: 5 Challenge Level: Challenge Level:3 Challenge Level:3 Challenge Level:3

Bricks are 20cm long and 10cm high. How high could an arch be built without mortar on a flat horizontal surface, to overhang by 1 metre? How big an overhang is it possible to make like this?