What happens when force is applied to an object of a pivot?
It will turn about the pivot. The turning effect is called a moment.
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What do the letters in this equation stand for and what are the units of measurement? F=F*d
M=moment(Nm), F=Force applied(N), d=perpendicular distance from the line of action of the force to the pivot(m)
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If an object is not turning the total clockwise movement=?
The total anti-clockwise movement.
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What is the centre of mass of an object?
The point at which all of the mass appears to be concentrated.
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How can you find the centre of mass of an object?
Suspend the object from a random point and let it settle. Draw a plum line straight down from point of suspension towards ground. Hang from different point and repeat. CofM= point where two lines cross.
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In terms of centre of mass what makes an object stable?
The centre of mass is low or the base is wide. The weight will act inside the base. There will be no moment of force and the object doesn't topple.
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In terms of centre of mass what makes an object unstable?
The centre of mass is high or the base is narrow. The weight will act outside the base. There will be a moment of force and the object will topple over.
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Other cards in this set
Card 2
Front
What do the letters in this equation stand for and what are the units of measurement? F=F*d
Back
M=moment(Nm), F=Force applied(N), d=perpendicular distance from the line of action of the force to the pivot(m)
Card 3
Front
If an object is not turning the total clockwise movement=?
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