Bottle openers are the example of
Lever of I order
Lever of II order
Lever of III order
Simple machine
As area increases, pressure
Remains the same
Decreases
Increases
Cannot Predict
The turning effect produced by a force around a fulcrum is called
Mechanical advantage
Velocity ratio
Moment of the force
Momentum
If a cube has a weight of 500 N and the area of its side is 1 m2 the pressure it exerts on the ground is
500 N/m2
100 N/m2
50 N/m2
5 N/m2
Aerosol cans used to contain a gas made from
Hydrogen
Methane
Chlorofluoro carbon
Ethane
Unit of moment of force is
Newton
Newton metre
Newton /metre
Metre
A Wheel barrow has its fulcrum at one and of the lever and the effort is applied at the other end. what class of lever is it?
Pulley
The external force applied to the machine is called
Effort
Fulcrum
Load
The force that a machine exert on a given body to be moved is called
If the area where pressure is applied is smaller than the area where the pressure is decreased, then the strength of the force is
Increased
Decreased
First increased and then decreased.
