## Physics | Study Mode

Question 1
A
molecules of ice, water and water vapour have equal intermolecular distances
B
molecules of ice, water and water vapour do not differ in the structure of their molecules
C
molecules of water vapour attract each other with forces far less than the forces of attraction between water molecules
D
water is less compressible than water vapour
Explanation.

No official Explanation yet!

Question 2
A
P = $$\frac{3m}{4 \pi d^3}$$
B
p = 4$$\pi md^3$$
C
p = $$\frac{6m}{\pi d^3}$$
D
p = $$\frac{3m}{2 \pi d^3}$$
Explanation.
p = $$\frac{M}{V} = \frac{M}{\frac{4}{3} \pi (\frac{d}{\pi})^3}$$

= $$\frac{6m}{\pi d^3}$$

Question 3
A
0.20m
B
0.25m
C
0.40m
D
0.50m
Explanation.
P = $$\frac{M}{AL}$$

L = $$\frac{M}{CA}$$

= $$\frac{1.76}{7000 \times 0.001257}$$

= 0.2m

Question 4
A
is the same at all points in the liquid
B
decreases with depth
C
is the same in all directions at a given point
D
is equal to the atmospheric pressure
Explanation.

No official Explanation yet!

Question 5
A
capillarity
B
viscocity
C
surface tension
D
relative density
Explanation.

No official Explanation yet!

Question 6
A
final velocity attained
B
distance covered
C
acceleration
D
workdone
Explanation.

No official Explanation yet!

Question 7
A
its mass
B
zero
C
its density
D
its volume
Explanation.

No official Explanation yet!

Question 8
A
density
B
expansivity
C
conductivity
D
opacity
Explanation.

No official Explanation yet!

Question 9
A
750.0J
B
225.0J
C
75.0J
D
22.5J
Explanation.
K.E = P.E = mgh

= 0.3 x 10 x 100 - 0.3 x 10 x 75

= 75J

Question 10
A
60g
B
80g
C
120g
D
200g
Explanation.
m = $$\frac{25 \times 120}{15}$$

= 200g

Question Map