Questions below are based on the following passage: To launch tennis balls from varying angles and at different speeds, a student builds the catapult shown in Figure 1. The tennis ball is propelled out of the catapult with velocity and angle  .  The student conducts two experiments to measure the distance between the launch site and where the ball lands. The student varies, launches the ball at a constant 15 m/s, and measures the distance travelled. The results are provided in Figure 2.  In the second experiment, the student varies the launch velocity of the ball, launches it at a... Show more

Questions below are based on the following passage:

To launch tennis balls from varying angles and at different speeds, a student builds the catapult shown in Figure 1. The tennis ball is propelled out of the catapult with velocity and angle  . 

The student conducts two experiments to measure the distance between the launch site and where the ball lands.

The student varies, launches the ball at a constant 15 m/s, and measures the distance travelled. The results are provided in Figure 2. 

In the second experiment, the student varies the launch velocity of the ball, launches it at a constant  angle, and measures the distance travelled. The measurements are recorded in Figure 3.

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ACT Science Test - Practice Test 5

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7 Questions

1. What is the dependent variable common to both experiments?

Distance travelledLaunch velocityHeight of tennis ballLaunch angle

2. Gravity acts equally on objects regardless of mass. The student launches a tennis ball of the same size but with twice the mass of the first ball tested. He uses a launch angle of
and a launch velocity of 15 m/s. What is the best estimate of the distance the ball will travel?

Between 8 and 10 metersAbout 22 meters190About 11 metersBetween 12 and 18 meters

3. Which combination of launch angle and launch velocity results in the greatest increase in distance travelled?

launch angle and increasing l launch angle and increasing launch velocity from 10 m/s to 15 m/s15 m/s launch velocity and increasing launch angle from 10 degrees to 15 degrees 15 m/s launch velocity and increasing launch angle from

4. Which launch angle achieved the maximum distance travelled?

5. The student conducts a third experiment by repeating Experiment 2 but using a
launch angle. What would be the most likely result of this third experiment when compared to Experiment 2? The third experiment would result in

less distance travelled for each velocity testedvariable distances travelled depending on the velocity testedgreater distance travelled at each velocity testedthe same distance travelled for each velocity tested

6. What is the independent variable in Experiment 1?

Weight of the ballLaunch angleLaunch velocityDistance travelled

7. What is a valid conclusion one could reach based on the results of Experiments 1 and 2?

Maximum distances are achieved at a Maximum distances are achieved at a launch angle with maximum launch velocity.Maximum distances are achieved at a Maximum distances are achieved at a