What is the pressure exerted, when a force of load acts on an area of 0.5 m2? What will be the new value of pressure if the force is increased by 50N?
200 Pa
150 Pa
300 Pa
500 Pa
Friction can be reduced by :
Using wheels
Using gloves
Increasing roughness
Avoid lubricants
Force has both magnitude as well as :
Speed
Direction
Accelaration
Velocity
Pick out the correct expression?
P = A ⁄ F
P = F ⁄ A
P = A2/F
P = F/A2
Spring balance is used to measure:
Volume
Density
Force
Pressure
Tyres of vehicles are deflated in deserts in order to :
Increase pressure
Increase force
Decrease force
Decrease pressure
1 kilogram force is almost equal to:
102N
10N
1000N
1⁄10N
Sharp surfaces may :
S.I Unit of pressure is:
Watt
Newton
Joule
Pascal
An example for force as a push is :
A fisherman pulling a fishing net
A man pulling the cart
Strech a spring
A boy kick a football
