If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.
gets hotter
increase is mass
decreases in mass
changes to steam
Correct answer is D
Boiling indicates changes from Liquid to gas.
The lead-acid accumulator consists of
lead as the positive electrode
lead acid as the negative electrode
hydrochloric acid as the electrolyte
tetraoxosulphate (vi) acid as the electrolyte
Correct answer is D
- the positive pole is lead peroxide (PbO\(_2\))
- the negative pole is head
- the electrolyte is H\(_2\)SO\(_4\)
\(300^0C\)
\(200^0C\)
\(100^0C\)
\(-100^0C\)
Correct answer is D
L\(_1\) = 100cm, T\(_1\) = 200°C
L\(_2\) = 99.4cm, T\(_2\) = ?
α 2 × 10\(^{-5}\) C\(^{-1}\)
K.E | = | 1
2 |
mv\(^2\) |
F | = | mv
t |
from rest
K.E | = | 1
2 |
m( | Ft
m |
)\(^2\) | = | 1
2 |
× | 2 x (\(\frac{6 \times 4}{2})^2 = 12^2 = 144J\) |