SHORT QUIZ

It is the way that scientists easily handle very large numbers or very small numbers.

• Conversion of Units

• Significant figures

• Scientific Notation

1.      The coefficient must be LESS than 1 and GREATER than 10 and contain all the significant digits in the number. 

• TRUE

• FALSE

Answer explanation

1.      The coefficient must be greater than 1 and less than 10 and contain all the significant digits in the number. 

·     12.3x  is not in scientific notation, since the coefficient is greater than 10 Neither is 

·     0.123x since the coefficient is less than 1

The International System of Measurement (SI) is the modernized version of it.

• Metric System

• English System

A quantity that requires both magnitude and direction?

• VECTORS

• SCALAR

When vectors act at a right angle with each other, use Pythagorean Theorem.

• true

• false

When vectors acting at an angle, use Cosine law.

• TRUE

• FALSE

This pertains to a coordinate system or sets of axes used to measure an object's position, orientation, and other properties.

• direction guide

• reference frame

• compass

• vectors

When a body’s velocity increases, it is said that the body___________.

It is a scalar quantity that specifies the magnitude of the rate of motion without reference to the direction of motion.

• velocity

• speed

• acceleration

• motion

1.      An objects decelerates uniformly from 60 m/s to a stop in 10 s. What is its acceleration?