IGCSE Physics: Forces and motion

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  • Created by: iamme
  • Created on: 26-02-16 17:20
Moment =
force x perpendicular distance from pivot
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The unit of the moment is...
Nm.
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The weight of a body acts through...
its center of gravity.
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The principle of moments states that...
in equilibrium the turning moments balance on a body.
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The upward forces on a light beam, supported at the end...
vary with the position of an object placed on the beam.
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For springs, metal wires and rubber bands extention varies with...
the applied force.
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Hooke's law states that...
the extension of a spring or wire is proportional to the applied force. This law is associated with the initial linear region of a force-extension graph.
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Elastic return to...
their original state once force is removed.
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Planets are orbited by...
moons.
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The Solar System is part of...
the Milky Way galaxy.
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A galaxy consists of...
billions of stars.
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The universe is a large collection of...
galaxies.
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Gravitational field strengh is different on...
different planets and moons.
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G has units of...
N/kg.
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Moons orbit planets and planets orbit the sun because of...
gravitational force.
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Most planet's orbits are...
circular.
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Comet's orbits are...
elongated and elliptical.
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Orbital spead =
2 x pie x orbital radies / time period
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Other cards in this set

Card 2

Front

The unit of the moment is...

Back

Nm.

Card 3

Front

The weight of a body acts through...

Back

Preview of the front of card 3

Card 4

Front

The principle of moments states that...

Back

Preview of the front of card 4

Card 5

Front

The upward forces on a light beam, supported at the end...

Back

Preview of the front of card 5
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