Mechanical systems quiz
Authored by Jigna Chaudhari
Science
8th Grade
NGSS covered
Used 6+ times
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40 questions
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1.
FILL IN THE BLANKS QUESTION
2 mins • 2 pts
You apply a force of 18 N on to the end of a lever to open a paint can lid. The
resistance of the lid is 9 N. Calculate the MA.
(a)
2.
FILL IN THE BLANKS QUESTION
2 mins • 2 pts
You apply a force on a crowbar to open a stuck door. The effort length of the
crowbar is 26 cm long and the resistance length is 4 cm. Find the MA of the crowbar.
(a)
3.
FILL IN THE BLANKS QUESTION
2 mins • 2 pts
A worker uses a board that is 4 m long to pry up a boulder. A small rock is used for
a fulcrum and is placed 0.5 m from the resistance end of the lever. Calculate the MA of the board.
(a)
4.
FILL IN THE BLANKS QUESTION
2 mins • 2 pts
Calculate the mechanical advantage if 500N force is needed to overcome the load of 1000N.
(a)
5.
FILL IN THE BLANKS QUESTION
2 mins • 2 pts
What part of the human body acts as the fulcrum in all lever systems?
(a)
6.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
a simple machine that consists of two
back-to-back inclined planes
fulcrum
wedge
screw
lever
7.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
a simple machine made of a rigid bar that
pivots at a fixed point
fulcrum
wedge
screw
lever
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