MECHANICAL LAW FINAL PAPER 2026
TESTED QUESTIONS WITH ACCURATE
SOLUTIONS GRADED A+
●● How do simple machines make work easier?
Answer: They reduce the amount of force (N) required to perform a task
●● What is a class 1 lever?
Answer: A load force on one end and effort force on the other with the
fulcrum in the middle. For example a crowbar and pliers, seesaw
●● What is a class 2 lever?
Answer: An effort force at one end and fulcrum at the other and load in
the middle. For example a wheelbarrow
●● What is a class 3 lever?
Answer: A load on one end and fulcrum on the other. The effort force is
in the middle. For example a hammer and your arm.
●● What is the formula for work?
Answer: =Force (N) x Distance (M )
, ●● What is mechanical advantage?
Answer: the comparison of the force produced by a machine to the force
applied to the machine
●● What is the formula for mechanical advantage?
Answer: = Load Force (N)/ Effort Force (N) or
= Effort Arm (m)/ Load Force (m)
●● What is ergonomics?
Answer: the comparison of the force produced by a machine to the force
applied to the machine
●● How does a steam engine work?
Answer: heated water to make steam and then used it to move a piston.
When the piston moved, it caused an attached rod (which was connected
to a crankshaft) to move as well
●● How does an internal combustion engine work?
Answer: combustion occurs inside the engine. The pistons goes through
4 steps: Intake stroke (taking in the fuel), compression stroke
(compressing the fuel-air mixture), power stroke (the fuel-air mixture is
ignited), exhaust stroke (waste products are released).
●● What is a winch?
TESTED QUESTIONS WITH ACCURATE
SOLUTIONS GRADED A+
●● How do simple machines make work easier?
Answer: They reduce the amount of force (N) required to perform a task
●● What is a class 1 lever?
Answer: A load force on one end and effort force on the other with the
fulcrum in the middle. For example a crowbar and pliers, seesaw
●● What is a class 2 lever?
Answer: An effort force at one end and fulcrum at the other and load in
the middle. For example a wheelbarrow
●● What is a class 3 lever?
Answer: A load on one end and fulcrum on the other. The effort force is
in the middle. For example a hammer and your arm.
●● What is the formula for work?
Answer: =Force (N) x Distance (M )
, ●● What is mechanical advantage?
Answer: the comparison of the force produced by a machine to the force
applied to the machine
●● What is the formula for mechanical advantage?
Answer: = Load Force (N)/ Effort Force (N) or
= Effort Arm (m)/ Load Force (m)
●● What is ergonomics?
Answer: the comparison of the force produced by a machine to the force
applied to the machine
●● How does a steam engine work?
Answer: heated water to make steam and then used it to move a piston.
When the piston moved, it caused an attached rod (which was connected
to a crankshaft) to move as well
●● How does an internal combustion engine work?
Answer: combustion occurs inside the engine. The pistons goes through
4 steps: Intake stroke (taking in the fuel), compression stroke
(compressing the fuel-air mixture), power stroke (the fuel-air mixture is
ignited), exhaust stroke (waste products are released).
●● What is a winch?
