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Stage 1
Answer 4 questions correctly in a row.
Read the text about an object in motion.
Ellen went bowling with some friends. She rolled her ball along the flat bowling lane toward the pins.
Complete the statement. Assume that the ball's mass did not change.
The gravitational potential energy stored between
the ball
the ball rolled along the lane
.
increased
decreased
stayed the same
ref_doc_title.
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