Advertisements
Advertisements
Question
______ help us to make work easier.
Options
Ramp
Simple machines
Work
Energy
Pulley
Advertisements
Solution
Simple machines help us to make work easier.
APPEARS IN
RELATED QUESTIONS
State whether the following statement is True or False.
In an ideal machine, work done on load is equal to the work done by effort.
Define the term ‘work input’ and ‘work output’ in relation to a machine.
show a nut cracker In the diagram, mark the position of the fulcrum F and the line of action of load L and effort E .
State whether the mechanical advantage of an inclined plane is equal to 1, less than 2 or greater than 1?
Fig show a system of four pulleys. The upper two pulleys are fixed and the lower two are movable.
(i) Draw a string around the pulleys. Also show the place and direction in which the effort is applied.
(ii) What is the velocity ratio of the system?
(iii) What is the mechanical advantage of the system?
(iv) What assumption do you make in arriving at your answer in part (iii)?
Define mechanical advantage (M.A.) of the machine.
How does a machine work?
Classify the following as a lever, a pulley and an inclined plane:
The wheel of a flagpole
Classify the following as a lever, a pulley and an inclined plane:
Nutcrackers
The ______ in the centre, the ______ on one side and the ______ on the other side make a lever of the first order.
