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.
1.38 x 106 J
2.53x104J
7.66x103J
1.38x103J
1.27 X103J
Correct answer is D
Q = mcΔθ = 0.050 x 460 x (85 - 25) = 1.38x103J
increases for a while and then decreases
decreases for a while and then increases
increases gradually
decreases gradually
remains the same
Correct answer is A
No explanation has been provided for this answer.
volume of P is greater than that of Q
specific heat capacity of P is higher than that of Q
density of P is greater than that of Q
density of P is lower than that of Q
specitic heat capacity of P is lower than that of Q.
Correct answer is B
No explanation has been provided for this answer.
7.30m
2.55m
2.10m
1.65m
0.45m
Correct answer is C
D = v x t = 7 x 0.3 = 2.1m
22.5oC
32.4oC
77.0oC
87.0oC
360.0oC
Correct answer is D