# AQA GCSE Physics Unit 3

heyy think this covers most of P3 except stars and space as i didn't really know how to word the questions...

good luck, hope it helps! :)

let me know if you have any suggestions or ive made any mistakes... :)

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• Created by: A-Gracie
• Created on: 21-05-11 13:32
where can the centre of mass of an object be found?
below the point of suspension
1 of 15
for an object to balance what must happen?
the anticlockwise movements = the clockwise movements
2 of 15
what happens to gravity as you move further away from a planet/star?
it decreases
3 of 15
how long does it take a geostationary satellite to orbit the earth once?
24 hours
4 of 15
where is the centre of curvature and focal point in a concave mirror?
in front
5 of 15
what is the formula for magnification?
magnification= image height/object height
6 of 15
what is the range of sounds that we can hear?
20 Hz - 20000 Hz
7 of 15
what happens to the loudness of a noise when the amplitude increases?
it increases
8 of 15
true or false: the higher the frequency, the lower the pitch?
False
9 of 15
what do we call sound that has a higher frequency than we can hear?
ultrasound
10 of 15
what is a solenoid?
a coil of wire
11 of 15
what name is given to a solenoid with a magnetically 'soft' iron core in the middle?
an electromagnet
12 of 15
moving a magnet in a coil of wire induces...
voltage
13 of 15
what does a transformer do?
change the voltage
14 of 15
true or false: primary voltage/secondary voltage = number or turns on primary/number of turns on secondary?
True
15 of 15

## Other cards in this set

### Card 2

#### Front

for an object to balance what must happen?

#### Back

the anticlockwise movements = the clockwise movements

### Card 3

#### Front

what happens to gravity as you move further away from a planet/star?

### Card 4

#### Front

how long does it take a geostationary satellite to orbit the earth once?

### Card 5

#### Front

where is the centre of curvature and focal point in a concave mirror?

#### Back

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Alot of questions.

Good gradual increase in level and comprehension skill boundary as we descend.

Rated 5*

Good Job!

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thanks :)

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this was really helpful! thank youu! :)

Report

Really good :)

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