Cumulative Exam — Cumulative exam Answers
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The graph represents velocity vs. time for Carla.
A
Carla sped up in the beginning of her trip, stopped, and then slowed down.B
Carla had a greater acceleration in the beginning than in the end.C
Carla slowed down in the beginning of her trip, stopped, and then sped up.D
Carla had a continuous acceleration throughout the entire trip.22
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Which example illustrates a chemical change?
A
shredding paperB
smashing a soda canC
burning woodD
chopping wood23
Which represents an endothermic reaction?
A
wood burning in a fireB
splitting a gas moleculeC
using a heat pack on an injuryD
TNT exploding24
Which data can be measured quantitatively?
A
speed of lightB
odor of gasC
texture of a solidD
color of a flame25
Which ranks these materials by the attraction between their atoms from the weakest to the strongest?
A
oxygen gas, liquid water, liquid honey, solid iron oreB
liquid water, liquid honey, oxygen gas, solid iron oreC
solid iron ore, liquid honey, liquid water, oxygen gasD
oxygen gas, liquid honey, liquid water, solid iron oreDid you find these answers helpful?
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