Objects launched sideways

Answer Key - Grade 11 Science Worksheet - Building Confidence

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

1. 1.

   A ball rolls off a table at 2 m/s and lands 0.4 s later. With no air, how far from the table does it land, Ari?

   0.8 m
2. 2.

   A ball rolls off a table at 3 m/s and lands 0.5 s later. With no air, how far from the table does it land, Bo?

   1.5 m
3. 3.

   A ball rolls off a table at 1.5 m/s and lands 0.4 s later. With no air, how far from the table does it land, Esme?

   0.6 m
5. 4.

   In the trajectory grid, what happens to the horizontal arrow as the ball falls, Jun?

   • It stays at 2 m/s
   • It gets longer
   • It gets shorter
6. 5.

   In the trajectory grid, what happens to the downward arrow as the ball falls, Kira?

   Use the picture in question 4.

   • It grows by 0.98 m/s every 0.1 s
   • It stays the same
   • It shrinks
7. 6.

   In the trajectory grid, how far does the ball move sideways in each 0.1 s, Luz?

   Use the picture in question 4.

   • 0.2 m each time
   • Less with each step
   • 0.049 m each time
8. 7.

   With no air resistance, what force acts on the ball after it leaves the table, Pia?

   • Gravity, straight down
   • No force on it
   • A forward push that keeps it moving
9. 8.

   A ball rolls off a table. What shape is its path through the air, Ren?

   • Straight out, then straight down
   • A curve bending down
   • A straight slanted line
10. 9.

    Water leaves a level garden hose and curves down to the ground. Why does it curve, Tala?

    • Gravity pulls it down as it moves sideways
    • Water has no weight
    • Its sideways speed runs out
11. 10.

    A drone flying forward at a steady speed drops a ball. With no air, where is the ball as it falls, Zee?

    • Falling straight down and left behind
    • Ahead of the drone
    • Right below the drone