scientific variables

True or False: a test may have more than one independent variable

• true

• false

What would the independent variable be in an experiment testing which type of paper airplane goes the furthest?

• the type of paper used.

• the distance each plane flies.

• how hard the plane is thrown.

• the type of paper airplane.

A student wants to test the effects of type of exercise on heart rate.  What is the dependent variable?

• heart rate
• type of exercise
• amount of exercise
• time of day exercise occurs

Why do we want to test one variable at a time?

• Because it is hard to setup a data table with more
• To know what is causing the changes
• It is what has always been done
• No one really knows

Tags

NGSS.MS-PS2-2

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

Mr. S set up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. Identify the independent variable.

• Distance traveled by the ball
• Height of the ramp
• Mass of the ball

Tags

NGSS.MS-PS2-2

You drop a tennis ball from three different heights: 1 meter, 2 meters, and 3 meters above the ground. You measure to see how high the ball bounces.

What is a control variable?

• The ball you use

• The height you drop the ball from

• The height the ball bounces

Tags

NGSS.MS-ETS1-1

In your experiment, the thing you measure is called the...

• independent

• dependent

• control

• ruler

Tags

NGSS.MS-PS2-2

These variables keep the experiment fair by keeping things the same...

• independent

• dependent

• control

• the law

Tags

NGSS.MS-PS2-2

Which variable is the data that you measure and record in the lab?

• independent

• dependent

• control

• math