Objects launched sideways

Answer Key - Grade 11 Science Worksheet - Challenge Me

Circle the best answer, or write your answer on the line.

1. 1.

   A ball rolls off a table 0.784 m high at 2.5 m/s. With g = 9.8 m/s² and no air, how far from the table does it land, Ari?

   1 m
2. 2.

   A ball rolls off a table 1.225 m high at 3 m/s. With g = 9.8 m/s² and no air, how far from the table does it land, Bo?

   1.5 m
3. 3.

   A ball rolls off a table 0.441 m high at 4 m/s. With g = 9.8 m/s² and no air, how far from the table does it land, Esme?

   1.2 m
4. 4.

   A drone flying forward at 4 m/s, 19.6 m above the ground, drops a ball. With no air, how long does the ball take to land, Jun?

   • 2 s
   • 19.6 s
   • 4 s
   • 0.5 s
5. 5.

   How far forward of the drop point does that ball land, Kira?

   • 0 m; it falls straight down
   • 8 m
   • 4 m
   • 19.6 m
6. 6.

   If the drone keeps flying at 4 m/s, where is it when the ball lands, Luz?

   • Back at the drop point
   • Behind the ball
   • Directly above the ball
   • 8 m ahead of the ball
7. 7.

   Milo says a ball rolled off a table faster stays in the air longer. Agree or disagree?

   • Agree: a forward force holds it up
   • Agree: faster balls stay up longer
   • Disagree: the height alone sets the fall time
   • Agree: its sideways speed fades
8. 8.

   Pia says a ball's sideways speed stays the same after it leaves a table, with no air. Agree or disagree?

   • Disagree: it slows as it falls
   • Agree: no sideways force acts
   • Disagree: it goes straight out first, then drops
   • Disagree: a forward force fades
9. 9.

   A ball must land 1.0 m from a table 0.784 m high. With no air, what speed should it leave at, Ren?

   • 2.5 m/s
   • 1.0 m/s
   • 6.25 m/s
   • 0.4 m/s
10. 10.

    Water leaves a level hose at 5 m/s from 0.441 m above a bucket line. With no air, how far does it reach, Tala?

    • 1.5 m
    • 5 m
    • 0.3 m
    • 2.2 m