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Units
How does the metric system make unit conversions simpler than the imperial system?
Metric uses prefixes (powers of 10), so you can convert by moving the decimal.
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Scientific Notation
Give one time scientific notation is helpful, and one time that it isn’t needed.
Helpful for very big or very small numbers. Not needed for normal-sized numbers.
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Graphs
Why are scatter plots helpful for quickly finding a relationship in data?
They show points visually, so patterns and trends are easier to notice.
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Scalars vs Vectors
Are scalars “not useful” because they have less info than vectors?
No. Scalars are useful when direction doesn’t matter (like time or temperature).
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Distance vs Displacement
Why would distance be more helpful than displacement when someone asks “how far away are you”?
Distance matches the route/path traveled, which is usually what people mean.
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Speed
Speeding tickets are based on average velocity or instantaneous velocity?
Instantaneous velocity, because it measures speed at one moment.
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Acceleration
Does a negative acceleration always mean an object is slowing down?
No. It depends on the direction of the velocity compared to the acceleration.
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Correlation
Daily high temperatures rise in spring/summer and fall in fall/winter. What type of correlation is that?
A cyclical relationship because the pattern repeats each year.
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