Replication and Repetition

A controlled experiment is designed to test

• The effective one variable on other

• all the variables

• the controlled variables only

Scientists use many different ................................ to answer questions

Tags

NGSS.MS-PS2-2

The common qualities of a controlled experiments are :

• Testable questions

• Research

• Developing Hypothesis

• Avoid Bias

• Designing Experiment to test the hypothesis

Independent Variable, which is changed by the scientist during an experiment is also known as

• Dependent variable

• Test Variable

• Controlled Variable

The variable that we measure to see if there is any effect is the .............................................. variable

Tags

NGSS.MS-PS1-2

For this experiment what were the independent and dependent variables

• Air pressure in a football and its effect on throwing accuracy

• Throwing accuracy of Football on Air pressure

• None of them

"Putting different amounts of Air Pressure into the balls "was taken as which Variable

• Controlled

• Independent

• Dependent

"How accurately the Quarterback threw the ball" was taken as which variable for the experiment

• Independent

• Controlled

• Dependent

What all were the controlled variable used for the experiment

• Distance to target

• Wind conditions

• Time of the Day

• Arm strength

• Brand of the Ball

Tags

NGSS.MS-PS2-2

When you do many trails during an experiment then it is called

• Variables

• Test

• Repetition