Make a simple catapult using the given materials, as shown in the figure. Launch the small stone in your catapult at an angle. Use the protractor to measure the angle. Get the time of flight of the object, using the stopwatch. Measure the distance traveled and the height achieved by the object using the ruler. Record your data on the table below.
Angle of projection Time of flight Height achieved Distance traveled
15°
30°
45°
60°
75°
Questions:
1. What is the distance traveled by the object at 15°, 30°, and 45°?
Answer:
2. At what angle of projection did the object travel farthest?
Answer:
3. Compare the distance traveled by the object at 15° and 75°.
Answer:
4. At what angle of projection did the object reach the maximum height?
Answer:
5. Compare the height achieved by the object at 75°, 45°, and 30°.
Answer:
Activity 3: It's My Flight
Objective: Investigate the relationship between the projection angle, the height, and range of the projectile
Materials: Plastic spoon, cardboard, rubber band, protractor, ruler, small object, and watch