forces and elasticity Flashcards

1
Q

what has to happen to change a shape of an stationary object only?

A

more than one force has to be applied

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2
Q

what is elastic deformation?

A

it can go back to its original shape and length after the force is gone

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3
Q

what is inelastic deformation?

A

when its original shape has been changed due to forces it cant go back

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4
Q

whats the equation to work out force?

A

force= spring constant x extension

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5
Q

what is stored in a elastic object stretched or compressed?

A

elastic potential energy store

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6
Q

whats the relationship between work done and elastic potential energy?

A

the work done is equal to the elastic potential energy stored

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7
Q

what equipment is used in the experiment between force and extension?

A

a clamp stand, 2 bosses, 2 clamps, meter ruler and weights

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8
Q

what does the pointer attached to the spring indicate?

A

the unstretched length of the spring

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9
Q

how do calculate the extension made by adding weights?

A

for each reading you subtract the stretched length from the unstreched length

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10
Q

what is the extension produced by 1 newton weight

A

4 because if its a newton weight you times by 4

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11
Q
A
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