Quiz

A possible explanation to a problem that has not yet been tested. 

• data
• theory
• hypothesis
• fact

This variable in an experiment is the one being changed by the scientist. 

• dependent variable
• independent variable
• control variable
• control group

Should experiments be repeated over and over to see if the results are the same each time?

• yes
• no

Mr. S. sets up an experiment to see how toy cars with different masses affects the distance they roll down a ramp.  Identify the independent variable.

• distance traveled by the cars
• height of the ramp
• mass of the car
• number of cars

Mr. S. sets up an experiment to see how toy cars with different masses affects the distance they roll down a ramp.  Identify the dependent variable.

• height of the ramp
•  distance traveled by the cars
• mass of the car
• number of cars

Which variable depends on what is done at the beginning of an experiment?

• Dependent
• Independent
• Control
• Following

A student is planning an experiment to find out how the height from which he drops a ball affects how high the ball bounces. The dependent variable is the _____.

• Diameter of the ball
• Force acting on the ball
• Height that the ball bounces
• Height from which the ball is dropped

What is a factor that is measured for change in an experiment?

• control
• constant
• independent variable
• dependent variable

What is the factor that an experimenter changes on purpose?

• Dependent Variable
• Independent Variable
• Constant
• Control

The part of the experiment that does not contain the independent variable. Used for comparison.

• Control Group
• Experimental Group
• Results
• Data