
Engineering Concepts Flashcard for Grade 9
Flashcard
•
Engineering
•
9th Grade
•
Practice Problem
•
Hard
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35 questions
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1.
FLASHCARD QUESTION
Front
What is the primary function of a gear in a mechanical system?
Back
To transmit torque
2.
FLASHCARD QUESTION
Front
Which of the following is a characteristic of a parallel circuit? The current is the same through all components, The voltage is the same across all components, The resistance is the same across all components, The power is the same across all components
Back
The voltage is the same across all components
3.
FLASHCARD QUESTION
Front
In the engineering design process, what is the purpose of the "Define the Problem" step?
Back
To identify the needs and constraints
4.
FLASHCARD QUESTION
Front
Calculate the mechanical advantage of a lever with an effort arm of 4 meters and a load arm of 2 meters.
Back
The mechanical advantage (MA) is calculated as the ratio of the length of the effort arm to the length of the load arm, which is $MA = \frac{effort\ arm}{load\ arm} = \frac{4}{2} = 2$.
5.
FLASHCARD QUESTION
Front
If a resistor of 5 ohms is connected in series with a 10-ohm resistor, what is the total resistance?
Back
15 ohms
6.
FLASHCARD QUESTION
Front
During the engineering design process, why is it important to test a prototype?
Back
To identify potential improvements
7.
FLASHCARD QUESTION
Front
A mechanical system uses a pulley to lift a load. If the input force is 50 N and the output force is 200 N, what is the mechanical advantage of the pulley system?
Back
4
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