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Students are testing how mass affects speed. They choose five bike riders. Each rider measures his or her mass. The riders take turns going down the hill. They cannot pedal and must sit upright. The other students calculate and record their speeds.

Information
A diagram of a student on a bike on top of a hill. There is a start flag directly in front of the student and a finish flag at the bottom of the hill.

Question
Drag each variable of the investigation into the table.

Response area with 3 blank spaces
,begin bold,Independent Variable(s),end bold,

,begin bold,Dependent Variable(s),end bold,

,begin bold,Control(s),end bold,
Blank space 1 empty

Blank space 2 empty

Blank space 3 empty

1 answer

Here is how you can categorize the variables of the investigation:

Independent Variable(s)

  • Mass of the bike riders

Dependent Variable(s)

  • Speed of the bike riders

Control(s)

  • Same hill (slope and surface)
  • Same bike type
  • Same riding position (sitting upright)

You can fill in the table accordingly:

| Independent Variable(s) | Dependent Variable(s) | Control(s) | |--------------------------------------|---------------------------|------------------------------------| | Mass of the bike riders | Speed of the bike riders | Same hill (slope and surface) | | | | Same bike type | | | | Same riding position (sitting upright) |