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17 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Speed |
Distance ———— Time |
SIDOT |
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Acceleration |
change in velocity ———————— change in time |
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Density |
p = m\v
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Momentum |
P = mv |
IT IS DIFFICULT TO STOP |
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What is mass? |
The mass of a body is the measure of how much matter it contains. |
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What is weight dependant on? |
Mass; the greater an objects mass the greater its weight. |
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What is inertia? |
The inertia of an object is its resistance to a change of its motion. |
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How do you find the extension of a material at any stage? |
It's length at that stage - it's initial length. |
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What is Hooke's law? |
Hooke's law for springs states that the extension of a spring is directly proportional to the weight it supports. |
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How do you find stretching force/ tension of a spring? |
F = kx (K = Spring constant and X = extension) |
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What is centripetal force? |
Any object moving round a circular path is acted by a resultant force which is directed towards the centre of the circle. This resultant from force is centripetal force. |
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What is thermal expansion? |
The expansion of a substance due increasing its temperature. |
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What is thermal expansion? |
The expansion of a substance due increasing its temperature. |
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What are three practical uses of thermal expansion in solids. |
1) Expansion Gaps. 2) Fitting steel tyres onto train wheels. 3) Bimetallic Strips. |
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What is thermal capacity? |
The thermal capacity of an object is the amount of energy needed to raise its temperature by 1 degree Celsius. |
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What is the specific heat capacity of a substance? |
It is the amount of energy needed to hear 1kg of the substance by 1 degree Celsius. |
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How do you find thermal capacity? |
Energy Supplied ———————— Temp. Change |
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