If you are cycling, and wind pushes you from behind, your speed will
Increase
Decrease
No change
Can not be predicted
The force acting normally on a surface is called
Gravity
Pressure
Thrust
Buoyant force
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
Which word is used to describe push or pull?
Force
Density
Volume
Materials used to reduce friction are called
Lubricants
Fuels
Catalyst
None of these
What is the SI unit of force?
Newton(N)
Volt(V)
Hertz(Hz)
Ampere(A)
Density of an object
Is different in different place
Is greater in liquids
Is a constant
Is less in liquids
The unit of pressure is
Newton
Newton / metre
Pascal
Newton metre
To roll forward,there should be a friction between the wheels of a vehicle and
Engine
Air
Surface of the road
The force that opposes the motion or tendency of motion between two surface in contact is called
Gravitational force
Tension
Force of friction
Magnetic force