1
Q
acid +metal=salt+
A
hydrogen
2
Q
acid+base=salt+
A
water
3
Q
acid+alkali=salt+
A
water
4
Q
acid+carbonate=salt+
A
water + carbon dioxide
5
Q
acids have a ph of
A
0-6
6
Q
alkalis have a ph of
A
6-12
7
Q
what is a base
A
a substance that can neauturalize the acid
8
Q
a moment/definition
A
is a turning force
9
Q
moment =
A
force times distance
10
Q
pressure =
A
force divide by area
11
Q
force =
A
pressure times area
12
Q
area=
A
force divide by pressure
13
Q
two types of waves
A
transverse and longitudinal
14
Q
parts of a wave
A
amplitude and wavelength
15
Q
opposite poles
A
attract
16
Q
like poles
A
repel
17
Q
how to make the electromagnet stronger
A
more coils
more batteries
18
Q
A
summer exams 2025
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