Simple Machines Review Game Question Preview (ID: 22938)
Physical Science 9 Chapter 14 Review Game On Simple Machines.
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The type of mechanical advantage in which friction is considered is
a) ideal mechanical advantage
b) fixed mechanical advantage
c) efficiency mechanical advantage
d) actual mechanical advantage
Work divided the time it takes to perform the work is known as
a) Efficiency
b) Power
c) Input force
d) IMA
One horsepower equals about
a) 746 Joules
b) 746 Watts
c) 746 Newtons
d) 746 m/s
The SI unit we use to measure work is the
a) Joule
b) Newton
c) Watt
d) millimeter
Which of the following is NOT a way that machines change a force?
a) change the direction of it
b) increase the size of it
c) increases the distance over which the force acts
d) decreases the size of it
Input distance/Output distance =
a) Actual Mechanical Advantage
b) Power
c) Ideal Mechanical Advantage
d) Efficiency
(Work output/Work input) x 100 =
a) Ideal Mechanical Advantage
b) Efficiency
c) Actual Mechanical Advantage
d) Power
A rigid bar that can move around a fixed point is known as a
a) pulley
b) wheel and axle
c) inclined plane
d) lever
The SI unit for power is the
a) Watt
b) Joule
c) Newton
d) Tesla
To calculate the ideal mechanical advantage of a lever you divide the ____ by the ____.
a) input distance, output distance
b) input force, output force
c) output distance, input distance
d) output force, input force
The ____ is the distance between the output force and the fulcrum
a) input arm
b) fulcrum arm
c) output arm
d) output force
Which of the following is NOT a classification of levers?
a) First class
b) Second Class
c) Third Class
d) Fourth Class
The seesaw is an example of a ___ class lever.
a) First
b) Second
c) Third
d) Fourth
The class of lever in which the fulcrum is in between the input and the output forces is
a) First
b) Second
c) Third
d) Fourth
The wheelbarrow is an example of a ____ class lever.
a) First
b) Second
c) Third
d) Fourth
The class of lever in which the output force is in between the input force and the fulcrum is
a) First
b) Second
c) Third
d) Fourth
The type of pulley in which the direction of the force is changed, however, the size of the force is not increased is ____.
a) First
b) Fixed
c) Block and Tackle
d) Movable
The class of lever in which the input force lies in between the output force and the fulcrum is
a) First
b) Second
c) Third
d) Fourth
To calculate the mechanical advantage of a pulley you
a) Multiply the input force by the output force
b) Divide the number of ropes supporting the load by the weight of the load
c) Count the number of ropes supporting the load
d) Divide the output distance by the input distance
A ____ is made of a larger outer disk attached to a smaller inner disk.
a) Screw
b) Wedge
c) Wheel and Axle
d) Lever
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