Physical Science Quiz

When designing an experiment, the first step is to _____.

• state a hypothesis

• list a procedure

• state a problem

• analyze the data

A factor that changes in an experiment from manipulation of the independent variable is the ______.

• control

• hypothesis

• constant

• dependent variable

An organized process used to gather observation and test a hypothesis is a(n)

• problem

• experiment

• exercise

• constant

A statement that describes what happens in nature is a

• scientific law

• hypothesis

• theory

• variable

An explanation of an event that is based on repeated observations and experiments is a ________.

• problem

• hypothesis

• theory

• variable

In an experiment to determine if the popping of popcorn is affected by the temperature at which it is stored, counting the popped kernels is an example of a(n)

• conclusion

• control

• hypothesis

• observation

In a graph, the variable on the horizontal axis is the _______.

• variable with the largest range

• variable wit the smallest range

• dependent variable

• independent variable

The type of graph that would be used to show how some fixed quantity is broken down into parts is a _______.

• line graph

• circle graph

• bar graph

• table

In a graph showing how the temperature of a material changes over time, temperature change is the _______.

• dependent variable

• independent variable

• variable with the smallest range

• variable with the largest range

Of the following, the most correct way to express density is _______.

• g/m

• g/cm³

• g/cm

• kg/cm³