Simple Machines, Mechanical Advantage & efficiency
Quiz
•
Physics
•
9th - 12th Grade
•
Easy
+5
Standards-aligned
Jamie Chenoweth
Used 6+ times
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36 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
The amount by which a machine multiplies input force is known as the
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
A screwdriver is an example of a wheel and axle, which is a type of simple machine. The mechanical advantage of a wheel and axle is the ratio of the radius of the wheel to the radius of the axle. The force required to turn a screw can be reduced by
Tags
NGSS.MS-PS2-1
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Elevators lift loads by employing a motor and a complex system of pulleys. If the elevator converts all the energy used to work (no heat or friction is generated), how many Joules would be required to lift a 2,500 N load 15 m? This is about five floors in a typical building.
Tags
NGSS.MS-PS3-1
NGSS.MS-PS3-5
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
A lever and fulcrum are used to lift a fallen tree, which has a weight of 480 N. If the lever has a mechanical advantage of 5.5, what is the input force that will begin lifting the tree off the ground?
Tags
NGSS.MS-PS2-1
NGSS.MS-PS2-2
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is the primary mechanical advantage of using the simple machine seen in the image?
Tags
NGSS.MS-PS2-1
NGSS.MS-PS2-2
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is the ideal mechanical advantage of an inclined plane which has 4 cm height and 16 cm slope?
Tags
NGSS.MS-PS2-2
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is the efficiency of a machine if 55.3 J of work are done on the machine, but only 14.3 J is produced by the 1machine?
Tags
NGSS.MS-PS3-5
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