GCSE AQA Physics Unit 3

Everything in the Physics AQA Single Science specification. There is a few differences between this and the Seperate Science specification but they're both relitively similar.

Happy Revising!

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The turning force of an object is called the...?
Moment
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What is the equation for calculating the moment?
Moment = Force x Perpendicular distance
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What is the Perpendiculat Distance?
The horizontal line from the force to the pivot
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What is the law of Moments?
The rule that when an object is not moving the moments turning clockwise are equal to those turing anticlockwise
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What is the equation for the Law of Moments?
Clockwise Moments = Anticlockwise Moments
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When calcuating an unknown value (e.g. perpendicular distance) when given a labelled diagram, the equation is...?
F1 x D1 = F2 x D1
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What would happen to the object if its line of the Centre of Mass falls outside of the base line?
It would fall over
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What is the Centrapetal Force?
Is the inward pull of a circling object.
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If the distance is double the force of gravity is...?
x2
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What is a Geostaionary Satellite?
A communication satellite that orbits above the equator in 24 hours.
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What is a Polar Satellite?
A monitoring satellite that orbits over the poles in more than 24 hours.
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What is angle i?
The angle of Indidence
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Angle i = Angle r ?
True
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What is the normal?
The line that crosses through an object at 90 degrees.
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What is the Critical Angle for glass?
45 degrees
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When the Angle of Incidence excceeds the Critical Value what happens?
There is no external refraction
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What happens when the Angle of Incidence is equal to the Critical Value?
The ray is refracted externally on a horizontal line
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Images on a camera are always...?
Real
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What is a plane mirror?
A flat mirror
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An image produced by a plane mirror is...?
Upright, virtual, laterally inverted, same size
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An image formed by a convex mirror is...?
Smaller, virtual, upright
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An image produced by a concave mirror is...?
Real
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A diverging lense is a convex lens?
False
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What is the formula for Magnification?
= Image height / Object height
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How is Ultrasound produced?
Oscillations from electronic systems
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How does Ultrasound waves form an image of the object it is used to scan?
From the rays that are reflected at each new boundry
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Other cards in this set

Card 2

Front

What is the equation for calculating the moment?

Back

Moment = Force x Perpendicular distance

Card 3

Front

What is the Perpendiculat Distance?

Back

Preview of the front of card 3

Card 4

Front

What is the law of Moments?

Back

Preview of the front of card 4

Card 5

Front

What is the equation for the Law of Moments?

Back

Preview of the front of card 5
View more cards

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