Post Assesments

Question 1

Information shown by a trend line on a line graph that is beyond what a experimenter measured is called what?

Answer 1

Extrapolated information

Question 2

Jonathan wanted to measure the impact of assets to neutralize stomach. He chose four brands of antacid and placed one tablet of each into four beakers containing 25 ml of 0.5 m hydrochloride acid. After stirring, he placed a piece of pH paper in each beaker to determine the pH. What is the independent variable? Dependent variable? Two controlled variables?

Answer 2

Independent - antacid brands
Dependent - pH
Two controlled variables - 25 ML of 0.5 M hydrochloric acid and pH paper

Question 3

What equipment should you use to measure the length of a block of wood?

Answer 3

Ruler or meter stick

Question 4

What should you use to measure the mass of a cylinder of aluminum?

Answer 4

Balance

Question 5

What should you use to measure the amount of applied force on a small car?

Answer 5

Scale

Question 6

What is type of graph that shows parts of a whole?

Answer 6

A circle graph