PS Chapter 1 Review

steps followed to solve scientific problems.

prescribed decimal place that determines the amount of rounding off to be done

the exactness of a measurement.

Write in scientific notation 0.0000009 g

You form a hypothesis only after you test or experiment.

summary of many experimental results and observations

ability and willingness to make judgments on an objective basis.

the application of science for practical purposes.

Calculate the following 8 x 10 *5 / 2 x 10 *2

part of an experiment that doesn’t change.

A Kilogram is 1/100 of a gram.

factor that changes in an experiment in order to test the hypothesis.

research that adds to the body of scientific knowledge

knowledge obtained by observing natural events and forming testable ideas

A millimeter is the same as 10 meters.

Write in scientific notation 900,000,000 m

Using scientific notation allows scientist to allow for very large or very small numbers.

explanation based on observation

practical application of scientific knowledge

Which of the following is not one of the three main branches of science?

Calculate the following 4 x 10 *5 X 2 x 10 *2

expressing a quantity as a number multiplied by 10 to the appropriate power.

When dividing numbers in scientific notation you always subtract the exponents

The international system of units used by scientist is also known as what?

The measure of the gravitational force exerted on an object is it’s what?

Which of the following describes something that scientist do?

how close is a measurement to its true value.

What is the straight line distance between two points called?

Science is firm and unchanging.

When Multiplying numbers in scientific notation you always subtract the exponents

The size of a body region in three dimensional space is it’s what?

Models are used by scientist to show small things, predict future events, and show things that may be unsafe.

Convert 3456 mm to m

Evolution is classified as a scientific theory.

The amount of matter in an object is the objects what?

best guess as the answer to the question

What is the basic unit used to measure length in SI units?

The first step in the scientific method is to observe.

Which answer to the following is correct in significant figures? 5.5 x 2.35 x 6.789

Gravity is considered to be a scientific law.

Which of the following is used by scientist to make their information more presentable?

In significant figures, you always round to the least accurate number.

All calculations in science are based on what system of measurement?

Convert .289 km to mm