Levers and Simple Gears | GCSE Physics Practice
Levers and gears are used to transmit and multiply forces or rotational motion.
How does a long lever handle make it easier to lift a heavy object?
What is Levers and Simple Gears | Practice?
"Simple machines used to transmit and multiply forces or rotational motion."
What is the resultant force on an object if a 10N force acts right and a 4N force acts left?
Which of these is the correct vector equivalent of 'Distance'?
An object moves at a constant velocity. What is the resultant force?
What is the unit of the spring constant (k)?
Mechanical Advantage
Levers use a pivot to multiply force.
Gears transmit rotational effects (moments).
A small gear driving a large gear increases the turning effect but reduces speed.
Work done on one side equals work done on the other (ignoring friction).
Practical Link: Spanners, wheelbarrows, and scissors are all examples of levers in everyday use.
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