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Sample Practice Test Questions
Which of the following is the smallest component of an element that still retains the properties of the element?
atom
An atom is the smallest component of an element that still retains the properties of the element.
In the food chain, omnivores may be which of the following?
secondary or tertiary consumers
Secondary or tertiary consumers may be omnivores.
Which of the following is not true of light waves?
are mechanical waves
Unlike mechanical sound waves that require a physical medium for propagation, light waves are electromagnetic and can travel through empty space. Light waves are also much faster, travelling at 186,000 m/s vs. 343 m/s for sound waves.
A joint created by welding is __________ the original metal.
as strong or stronger than
The joint created by welding is as strong or stronger than the original metal.
Which of the following allows encapsulating complex circuit designs for easier integration into electronic devices and machines?
integrated circuits
Circuits containing transistors are packaged into integrated circuit chips that allow encapsulating complex circuit designs (CPU, memory, I/O) for easier integration into electronic devices and machines.
Inside and outside micrometers measure inside and outside:
diameters
Micrometers measure the diameter of cylindrical objects. Outside micrometers measure the external diameter of cylinders and inside micrometers measure the internal diameter of the cylinder's hole.
If a = c = 3, b = d = 8, and the blue angle = 58°, what is the area of this parallelogram?
The area of a parallelogram is equal to its length x width:
a = l x w
a = a x b
a = 3 x 8
a = 24
Solve for b:
2b + 2 < 8 - 8b
To solve this equation, repeatedly do the same thing to both sides of the equation until the variable is isolated on one side of the < sign and the answer on the other.
2b + 2 < 8 - 8b
2b < 8 - 8b - 2
2b + 8b < 8 - 2
10b < 6
b < \( \frac{6}{10} \)
b < \(\frac{3}{5}\)