Unit Test — Unit test Answers
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Holden is trying to determine the velocity of his race car. He went 20 meters east, turned around, and went 40 meters west. His car was 20 meters from the starting line. This took 5 seconds.What is the car’s average velocity?
A
4 m/s eastB
4 m/s westC
12 m/s westD
12 m/s east23
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Anna drew a diagram to compare the strong and weak force.
A
X: infinite rangeY: attractive and repulsiveZ: very small rangeB
X: attractive onlyY: very small rangeZ: attractive and repulsiveC
X: attractive and repulsiveY: infinite rangeZ: attractive onlyD
X: very small rangeY: attractive onlyZ: infinite range24
Which change will cause the gravitational force between a baseball and a soccer ball to increase?
A
removing the outer layer of the baseballB
moving the balls farther apartC
wrapping the soccer ball in layers of duct tapeD
using a baseball with a thinner leather25
Hector drew the diagram below to illustrate projectile motion.
H
He should switch the labels “Gravity” and “Inertia.”H
He should make the arrow for “Path” curve downward.H
He should switch the labels “Inertia” and “Path.”H
He should make the arrow for “Inertia” curve downward.Did you find these answers helpful?
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