The SI Unit of force is
Newton ( N)
Joule ( J )
Kilogram ( Kg)
Pascal
Brakes on cycles or cars work because of
Force
Pressure
Friction
Gravitational force
Which of the following is a strain force that is exerted by a stretched spring, rope or string?
Tension
Pull
Push
Which force is exerted when a moving object collides with a stationary object?
Non - Contact force
Frictional force
Impact force
Which of the following is a force which opposes relative motion between two surfaces in contact with each other?
Magnetic force
Non - contact force
The force that exists between any two masses because of their mass is called
Contact force
Electrostatic force
Which of the following is a wrong statement?
A force may bring a change in the state of motion of an object
A force always results in a change in the state of motion
A force changes the speed of an object
A force changes the direction of motion of an object
Which of the following is the force with which a body gets attracted to the centre of the Earth?
Weight
Forces acting from a distance are called
Muscular force
Contact forces
Non - contact forces
Which of the following increases friction?
By polishing
By lubrication
By using wheels and ball bearings
By applying sand and gravel on slippery ground
