A liquid gives force of 100 N over an area of 2 m2. What is the pressure?
50 N / m2
100 N / m2
25 N / m2
150 N / m2
To roll forward,there should be a friction between the wheels of a vehicle and
Engine
Air
Surface of the road
None of these
Force acting on unit area is called
Thrust
Pressure
Heat
Density
The force acting normally on a surface is called
Gravity
Buoyant force
Density of an object
Is different in different place
Is greater in liquids
Is a constant
Is less in liquids
Forces that two bodies in contact apply on each other are called
Contact forces
Action - at - distance forces
Primary forces
Gravitational force
Dams are constructed with
Greater thickness at their top
Greater thickness at their bottom
Greater thickness at their centre
Same thickness from top to bottom
When you walk or run, you push the ground
Forwards with your feet
Upwards with your feet
Downwards with your feet
Backwards with your feet
Which is the device used to measure pressure inside a vessel?
Barometer
Manometer
Nanometer
Lactometer
Which one of the following is something that can bring about a change in the state of rest or of motion of a body or a change in its shape or size?
Force
Surface tension
