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 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
3. 3.

   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?

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

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

   • 19.6 m
   • 4 m
   • 8 m
   • 0 m; it falls straight down
5. 5.

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

   • 8 m ahead of the ball
   • Back at the drop point
   • Directly above the ball
   • Behind the ball
6. 6.

   Noah says a forward force keeps a ball moving after it leaves the table. Agree or disagree?

   • Disagree: it keeps moving with no forward force
   • Agree: without it the ball would stop
   • Agree: it goes straight out, then drops
   • Agree: faster balls fall slower
7. 7.

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

   • Disagree: a forward force fades
   • Disagree: it slows as it falls
   • Disagree: it goes straight out first, then drops
   • Agree: no sideways force acts
8. 8.

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

   • 1.0 m/s
   • 0.4 m/s
   • 6.25 m/s
   • 2.5 m/s
9. 9.

   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?

   • 2.2 m
   • 1.5 m
   • 0.3 m
   • 5 m
10. 10.

    To make a ball land twice as far from the same table, what should Zee do?

    • Halve the launch speed
    • Double the launch speed
    • Use a heavier ball
    • Double the table's height