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Sample Practice Test Questions
In cell biology, where does DNA replication take place?
nucleus
The cell nucleus contains the genetic material of the cell and is where DNA replication takes place.
Which of the following is not a type of simple machine?
gear
The six types of simple machines are the lever, wheel and axle, pulley, inclined plane, wedge, and screw.
The pitch of the siren of an approaching ambulance changes as it approaches you. This is an example of which of the following?
Doppler effect
The Doppler effect occurs when the source or listener (or both) of sound waves is moving. If they're moving closer together, the listener perceives the sound with a higher pitch and, when they're moving apart, the listener perceives the sound with a lower pitch.
In the metric system, what prefix represents 103?
kilo
Kilo is the metric system prefix for 103.
On this circle, line segment AB is the:
diameter
A circle is a figure in which each point around its perimeter is an equal distance from the center. The radius of a circle is the distance between the center and any point along its perimeter. A chord is a line segment that connects any two points along its perimeter. The diameter of a circle is the length of a chord that passes through the center of the circle and equals twice the circle's radius (2r).
Which of the following is not true about simple magnets?
opposite poles repel each other
Simple magnets have two poles, north and south, and opposite poles attract each other (N attracts S, S attracts N). Likewise, the same pole of two magnets repel (N repels N, S repels S). The Earth has a magnetic field and North and South Poles which enables the use of a magnetic compass to determine direction.
Measuring tools provide a convenient and easy way to compare object dimensions against:
a standard
Measuring tools give easy access to the wide variety of standard dimensions that are used to categorize and classify objects.
In metals, increasing the temperature typically _____________ conductivity.
decreases
All conductors have resistance and the amount of resistance varies with the element. Metals exhibit increased resistance (and, therefore, lower conductivity) as their temperature increases.