Objects launched at an angle

Answer Key - Grade 11 Science Worksheet

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

1. 1.

   A spring toy launches a ball with a vertical part of 7 m/s. With no air, how high does it rise, Ari?

   2.5 m
2. 2.

   A spring toy launches a ball with a vertical part of 14 m/s. With no air, how high does it rise, Bo?

   10 m
3. 3.

   A spring toy launches a ball with a vertical part of 4.9 m/s. With no air, how high does it rise, Esme?

   1.225 m
5. 4.

   In the trajectory grid, how long is the ball in the air, Jun?

   • 2 s
   • 4 s
   • 1 s, the time to the top
   • 0.5 s
6. 5.

   In the trajectory grid, how far across does the ball land, Kira?

   Use the picture in question 4.

   • 9.8 m
   • 16 m
   • 8 m
   • 4 m, at the top
7. 6.

   In the trajectory grid, how high does the ball rise, Luz?

   Use the picture in question 4.

   • 8 m
   • 3.675 m
   • 9.8 m
   • 4.9 m
8. 7.

   Two balls are launched at the same speed, at 30° and 60°. With no air, how do their ranges compare, Noah?

   • They are equal
   • The 60° ball lands at 0 m
   • The 30° ball goes twice as far
   • The 60° ball goes farther, since it is steeper
9. 8.

   At the same speed, what does raising the launch angle from 30° to 60° do to the time in the air, Pia?

   • It decreases it
   • It stays the same
   • It increases it
   • It halves it
10. 9.

    At the top of a fountain's water arc, what is the water's velocity, Ren?

    • Zero; it has stopped
    • Straight down
    • Horizontal only
    • Straight up
11. 10.

    What is the acceleration of the water at the top of the arc, Tala?

    • 9.8 m/s², downward
    • 4.9 m/s², downward
    • 9.8 m/s², upward
    • 0, since it has stopped rising