Question 1

The SI unit of time is the

Accepted Answer

second

Answer

day

Answer

hour

Answer

minute

Question 2

The amount of space an object takes up is its

Accepted Answer

volume

Answer

mass

Answer

length

Answer

density

Question 3

The kilogram is the basic metric unit of

Accepted Answer

mass

Answer

volume

Answer

length

Answer

weight

Question 4

The metric system of measurement is based on the number

Accepted Answer

10

Answer

1

Answer

12

Answer

100

Question 5

To calculate the density of an object, you would

Accepted Answer

divide its mass by its volume

Answer

divide its volume by its mass

Answer

multiply its mass by its volume

Answer

divide its mass by its length

Question 6

The basic unit of length in the metric system is the

Accepted Answer

meter

Answer

foot

Answer

kilometer

Answer

mile

Question 7

If scientists cannot obtain exact numbers, they may rely on a(n)

Accepted Answer

estimate

Answer

guess

Answer

assumption

Answer

calculation

Question 8

The significant figures in a measurement include

Accepted Answer

the digits that have been measured exactly, plus one digit whose value has been estimated.

Answer

only the last digit in a measurement

Answer

only the digits that have been measured exactly

Answer

only the digit whose value has been estimated

Question 9

The closeness of a measurement to its true value is its

Accepted Answer

accuracy

Answer

estimate

Answer

significant figures

Answer

precision

Question 10

To determine how close to the true value an experimental value is, you would use

Accepted Answer

a percent error calculation

Answer

a median

Answer

significant figures

Answer

a precision calculation

Question 11

Ways to calculate an "average" include

Accepted Answer

the mean, median, and mode

Answer

the percent, median, and mode

Answer

the mean, median, and percent

Answer

the mean, percent, and mode

Question 12

The middle number in a set of data is the

Accepted Answer

median

Answer

mean

Answer

mode

Answer

significant figure

Question 13

The line graph shows

Accepted Answer

how the responding variable changes in response to the manipulated variable

Answer

how the manipulated variable changes on its own

Answer

changes in the responding variable only

Answer

changes in the manipulated variable only

Question 14

Material or energy that comes out of a system

Accepted Answer

output

Answer

input

Answer

process

Answer

feedback

Question 15

What is the first thing you should do if an accident occurs?

Accepted Answer

notify your teacher

Answer

go to the hospital

Answer

find the emergency equipment

Answer

start first aid treatment

Question 16

The most important lab safety rule

Accepted Answer

always follow your teacher's instructions and textbook directions exactly

Answer

always wear safety goggles

Answer

design and conduct your own experiments without asking your teacher

Answer

always wear a lab apron

Question 17

What does it most likely mean if a graph shows no identifiable trends?

Accepted Answer

there is no relationship between the variables

Answer

the graph has no use or value

Answer

there is a strong relationship between the variables

Answer

there are more than two variables

Question 18

A line graph in which the data points do fall along a straight line is called a

Accepted Answer

linear graph

Answer

nonlinear graph

Answer

circle graph

Answer

bar graph

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