S.I unit of force is :
Ampere
Joule
Herts
Newton
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
What will be the area of a surface where a force of 2500N produces a pressure of 25 Pa on it?
10 m2
100 m2
250 m2
2500 m2
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
Concept of force was given by:
Sir Isaac Newton
Robert Boyle
Albert Einstein
Blaise Pascal
The force which acts in the direction opposite to the direction of motion is called :
Gravitational Force
Magnetic Force
Frictional Force
Electrostatic Force
Friction can be increased by :
Applying oils
Polishing
Using wheels
Increasing roughness of the surface
S.I Unit of pressure is:
Watt
Pascal
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
1 kilogram force is almost equal to:
102N
10N
1000N
1⁄10N