Understanding Physical Science

Mini-Quiz: Gravity Velocity Equations for Objects Projected Downward

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Take this Mini-Quiz to check your understanding of the lesson material.

QUIZ

Self-check your understanding

What is the velocity of an object thrown downward at 10 ft/s after it falls 5 feet?
v = √(2.9.8*5 + 25) m/sGood try, but not right. Select another answer. v = (32*5 + 10) ft/sSorry, not correct. Try another button. v = √(2*32*5 + 25) ft/sCorrect. You know about gravity.
If the initial velocity is 30 m/s, what is the velocity of an object that has been falling for 10 s?
128 meters/secondThat is Correct. You did a great job. 304 m/sOops! Wrong answer. Re-read the question and try again. 100 meters per secondSorry, not correct. Try another button.
If vi = 2 m/s, what is the velocity after it has traveled y = 4 meters?
v = √(2*32*4 + 4) m/sGood try, but not right. Select another answer. v = √(2*9.8*4 + 4) m/sCorrect. You know about gravity. v = √(2*9.8*4 + 2) m/sOops! Wrong answer. Re-read the question and try again.

Pick an answer to see instant feedback. Re-read the lesson if you miss one.

If you got all three correct, you are on your way to becoming a Champion in Physics. If you had problems, you had better look over the material again.

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Self-check your understanding

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