P2.3.6 - Turning Forces (moments) Flashcards Preview

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

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

A
2
Q

What is the equation for calculating moments?

A

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

3
Q

What is the law of moments?

A

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

4
Q

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

A

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

5
Q

What is the scientific name for a turning force?

A

A moment.

6
Q

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

A
7
Q

A balanced see-saw is said to be in…

A

equilibrium

8
Q

What is the moment of the man on the right?

A

moment = force x distance from pivot

moment = 1000N x 0.5m

moment = 500 Nm

9
Q

What is the momemnt of the girl on the left?

A

moment = force x distance from pivot

moment = 500N x 1m

moment = 500 Nm

10
Q

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

A

Newton metres (Nm)

or

Newton centimetres (Ncm)