Knowledge Check CAPA3:Vector/1D-2D AP

Front

What is scientific notation?

Back

A method of expressing numbers as a product of a coefficient and a power of ten, e.g., 1.50e-2 represents 0.015.

Front

How do you convert a number to scientific notation?

Back

Move the decimal point to create a number between 1 and 10, then count the number of places moved to determine the exponent of ten.

Front

What is the significance of significant figures in scientific measurements?

Back

Significant figures indicate the precision of a measurement, reflecting the certainty of the data.

Front

How do you determine the number of significant figures in a measurement?

Back

Count all non-zero digits, any zeros between significant digits, and trailing zeros in the decimal portion.

Front

What is the formula for converting degrees to radians?

Back

Radians = Degrees × (π/180).

Front

What is the formula for converting radians to degrees?

Back

Degrees = Radians × (180/π).

Front

What is the distance formula in a 2D coordinate system?

Back

Distance = √((x2 - x1)² + (y2 - y1)²).

Front

What is the difference between scalar and vector quantities?

Back

Scalars have magnitude only (e.g., speed), while vectors have both magnitude and direction (e.g., velocity).

Front

How do you add two vectors graphically?

Back

Place the tail of the second vector at the head of the first vector and draw the resultant vector from the tail of the first to the head of the second.

Front

What is the Pythagorean theorem?

Back

In a right triangle, a² + b² = c², where c is the hypotenuse.