A girl playing basket ball is an example of :
Muscular force
Frictional force
Magnetic force
Electrostatic force
Pressure is directly proportional to :
force
area
length
volume of the surface
S.I unit of force is :
Ampere
Joule
Herts
Newton
A ball falling downwards due to :
Gravitational force
Friction can be increased by :
Applying oils
Polishing
Using wheels
Increasing roughness of the surface
Pick out the correct expression?
P = A ⁄ F
P = F ⁄ A
P = A2/F
P = F/A2
Thrust applied per unit area is :
Density
Force
Pressure
Velocity
Spring balance is used to measure:
Volume
Find the area of a surface, if a force of 250 N exerts a pressure of 100 Pa on it ?
25 m2
0.25m2
0.025m2
2.5m2
An example of electrostatic force is :
Earth revolving around the sun
Mustard seeds repelling each other
A magnet exerts force on another magnet
A girl pushing a chair
