S.I unit of force is :
Ampere
Joule
Herts
Newton
Thrust applied per unit area is :
Density
Force
Pressure
Velocity
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 for force can produce motion in a body is :
A boy kicking a football
A cyclist applying brakes to stop a bicycle
A child doing clay modelling
A rocket lifting off
Sharp surfaces may :
Increase pressure
Increase force
Decrease pressure
Decrease force
A girl playing basket ball is an example of :
Muscular force
Frictional force
Magnetic force
Electrostatic force
1 Pa = ?
1 N2/m2
1 N2/m
1 N/m2
1 N/m
Straps of school bags are made broad to :
Reduce force
Reduce pressure
What is the pressure exerted by a person of weight 550 N on the snow. If the total ski surface area is 0.5 m2 ?
1100 Pa
1000 Pa
2750 Pa
275 Pa
Pick out the correct expression?
P = A ⁄ F
P = F ⁄ A
P = A2/F
P = F/A2
