NB Grade 8 Scientific Literacy Practice Questions - Grade 8 Scientific Literacy Assessment - New Brunswick (Anglophone) Exam

A class tests whether ball size affects how far a ball rolls down a ramp. Which setup is the fairest test?

Roll a large ball down a steep ramp and a small ball down a gentle ramp, then compare distances. Roll balls of different sizes down the same ramp, released from the same height, and measure how far each rolls. Roll the same ball down ramps of different steepness and record the distances. Push each ball with different force and time how long it rolls.

Correct Answer:

Roll balls of different sizes down the same ramp, released from the same height, and measure how far each rolls.

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