# P: Hooke's Law and Moments

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• Created by: Hettie
• Created on: 08-06-13 09:22
What is the equation for a moment?
moment (Nm, Ncm) = force (N) × distance (m, cm)
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What is equilibrium?
When the sum off all anticlockwise moments = sum of all clockwise moments
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What is the centre of gravity of an object?
The point at which the entire weight of an object acts.
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What is Hooke's Law?
The extension of a material is directly proportional to the force applied to the material, until the limit.
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What does it mean if something's elastically stretched?
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What is it when something has been stretched too far to go back to its original size?
It has been permanently stretched.
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What is accuracy?
Close to the true value: in the centre of the bullseye.
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What is precision?
How close in agreement the measured values from repeated measurements are.
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## Other cards in this set

### Card 2

#### Front

What is equilibrium?

#### Back

When the sum off all anticlockwise moments = sum of all clockwise moments

### Card 3

#### Front

What is the centre of gravity of an object?

### Card 4

#### Front

What is Hooke's Law?

### Card 5

#### Front

What does it mean if something's elastically stretched?