WorksheetsForce & Pressure
Total questions: 20
Worksheet time: 10mins
gases exert pressure
in all directions
upwards
downwards
sideways
atmospheric pressure equals
1,00,000 pascals
1 pascal
1000 pascals
if we increase the surface area, pressure
decreases
increases
remains the same
if we increase the perpendicular distance, moment of force (torque)
increases
decreases
remains the same
the SI unit of thrust is
N
Nm
Pa
N/m2
if a body weighs 70 kgf, its mass is
70 kg
700 kg
7 kg
7000 kg
1 kgf equals
10 N
1 N
100 N
1000 N
the SI unit of torque is
Nm
N
N/m2
Pa
a force can change the shape & size of a body, if the body is
non-rigid
rigid
just any body
anti-clockwise torque is considered
positive
negative
who will apply more force on the ground?
a girl wearing pencil heals
a fat boy sleeping on the ground
a standing elephant
1 kPa equals
1000 N/m2
100 Pa
1000 Nm
the factor on which liquid pressure does NOT depend is
time for which the liquid is kept
density of liquid
depth of liquid
acceleration due to gravity
the walls of a dam are thicker at the bottom because
pressure of water increases with height, and it is maximum at the bottom
there is more water at the bottom than at the top
there is land also at the bottom, which is a solid
none of these
buoyant forces acts
upwards
downwards
in all directions
a liquid seeks its own
level
height
density
in our body, the atmospheric pressure is balanced by
blood pressure
body weight
body muscles
if we go higher up on a mountain, the atmospheric pressure will
decrease
increase
remain the same
what would be the pressure exerted by a 10 cm2 body of mass 50 kg?
5,00,000 Pa
5000 Pa
50,000 Pa
the moment of force (torque) of a 20 N force about an axis of rotation 0.5 m away would be
10 Nm
4 Nm
0.4 Nm
1 Nm
