P2.3.6 - Turning Forces (moments) Flashcards Preview

SHHS - Science - P2.3 - Motion and Pressure - Year 8 > P2.3.6 - Turning Forces (moments) > Flashcards

Flashcards in P2.3.6 - Turning Forces (moments) Deck (10)
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1

Label the arrows to show which girl causes a clockwise turning force and which causes an anticlockwise turning force.

2

What is the equation for calculating moments?

Moment (Nm) = Force (N) x Distance from Pivot (m)

3

What is the law of moments?

That when the anticlockwise and clockwise moments are the same, the object is in equilibrium.

4

A turning force involves a force acting over a certain distance from a _____

A turning force involves a force acting over a certain distance from a pivot.

5

What is the scientific name for a turning force?

A moment.

6

Add the labels: pivot, distance and force to the correct spaces.

7

A balanced see-saw is said to be in...

equilibrium

8

What is the moment of the man on the right?

moment = force x distance from pivot

moment = 1000N x 0.5m

moment = 500 Nm

9

What is the momemnt of the girl on the left?

moment = force x distance from pivot

moment = 500N x 1m

moment = 500 Nm

10

What are the units of a moment (turning force)?

Newton metres (Nm)

or

Newton centimetres (Ncm)