Mini-Quiz: Effect of Gravity on Sideways Motion

1. Why doesn't gravity affect an object moving sideways differently?

   Gravity pulls perpendicular to the ground, so sideways motion is not affectedCorrect. You know how gravity affects moving objects. Sideways motion is too fast for gravity to affect itSorry, not correct. Try another button. Gravity pulls sideways motion faster than stationary motionGood try, but not right. Select another answer.

2. After 2 seconds, which object is falling downward faster?

   The stationary object falls faster because gravity affects it moreSorry, not correct. Try another button. The object moving sideways falls downward faster because of less frictionOops! Wrong answer. Re-read the question and try again. They both are moving at the same downward velocity after 2 secondsThat is Correct. You seem to understand about gravity.

3. If two balls are thrown sideways at different velocities, will they hit the ground at the same time?

   Yes, because sideways velocities do not affect the rate the balls fallCorrect. You know how gravity affects moving objects. No, because the harder you throw a ball, the less gravity affects itGood try, but not right. Select another answer. It depends whether the balls are the same weight or notOops! Wrong answer. Re-read the question and try again.

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