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.
The specific latent heat of fusion of lead is the amount of heat required to
melt lead at its melting point
heat a unit mass of lead through 1oC
change the state of a unit mass of lead at its melting point
change the state of a unit mass of lead at its boiling point
Correct answer is C
No explanation has been provided for this answer.
The mode of heat transfer which does not require a material medium is
conduction
radiation
convection
propagation
Correct answer is B
No explanation has been provided for this answer.
1.0N
10.0N
9000.0N
11 000N
Correct answer is C
No explanation has been provided for this answer.
1.4 x 102N
24 x 104N
2.0 x 104N
1.7 x 103N
Correct answer is B
Volume = 2 x 4 x 3 = 24m3
mass = V x D = 24 x 103
F = mg
= 24 x 103 x 10
= 24 x 104
0.4N
100.0N
250.0N
1000.0N
Correct answer is B
F = ma and V2 = U2 + 2aX
F = m\(\frac{(V^2 - U^2)}{2X}\)
= 0.04\(\frac{(500^2 - 0^2)}{2 \times 50}\)
F = 100N