Simple Machines
Authored by RISHAB VIJAYMARAN
Science
7th - 8th Grade
Used 3+ times
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23 questions
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1.
FILL IN THE BLANKS QUESTION
30 sec • 1 pt
The ability to audio to do work is called (a)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Machines helps us to ______
save effort
to do work
save time
All of them
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Some machines are simple and some are ______
bad
good
complex
costly
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The Mechanical advantage of the Lever is equal to
Load arm/Effort arm
Effort arm/Load arm
Load arm+Effort arm
Load arm - Effort Arm
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
A pulley is used because it
has the mechanical advantage greater than 1.
has 100% efficiency.
helps to apply the force in a conventional direction.
requires more efforts to raise a less load.
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Wheel is used with axle because
sliding friction is less than the rolling friction.
rolling friction is less than sliding friction.
they work as inclined plane.
They help us to change the direction of force.
7.
OPEN ENDED QUESTION
2 mins • Ungraded
Name the machine to which the following belong?
1. Beam Balance
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