Analyzing Gravitational Data Quick Check - 10th grade connexus physical science
these are correct as of 2/2/23 :)
1. Melissa is working on the roof of her house. She drops a hammer and a nail. Why do both objects hit the ground at the same time?
💗- Earth’s gravity causes both objects to fall at the same rate.
2. Which of the following statements about gravitational mass is true?
💗- Gravitational acceleration is irrespective of mass.
3. Two objects fall from an apartment window sill at the same time. Object 1 lands on the sidewalk in 3.6 seconds. Object 2 lands on the sidewalk in 3.3 seconds. What can be concluded about the objects?
💗- Object 1 has more surface area than Object 2.
4. A company uses drones to fly food to people in regions that have experienced natural disasters. The food is packed in boxes that are attached to parachutes. How can the company change the design of its parachute to reduce the number of boxes that are damaged when they hit the ground?
💗- The company can design a parachute with more surface area.
5. Students want to design an experiment to study gravity. They decide they will drop four objects with the same mass from the top of their school’s bleachers. They will time how long each object takes to reach the ground. How can they improve confidence in the experiment’s results?
💗- Drop each object 10 times and use the average of each object’s fall times.
hope this helped <3
1. Why did the scarecrow win an award?
Because he was outstanding in his field! Just like how both objects fall at the same time due to Earth’s gravity!
2. Did you know I'm friends with a group of planets?
Yeah, we like to hang out because gravitational acceleration is irrespective of mass! It's like a universal friendship!
3. Why did the object take up a job as a landing mat?
Because it had more surface area! Just like how Object 1 took longer to land because it had more surface area than Object 2.
4. What did the parachute say to the box?
"Don't worry, I've got you covered!" The company can reduce the number of damaged boxes by designing a parachute with more surface area.
5. What did the stopwatch say to the falling objects?
"Time flies when you're having fun!" Dropping each object multiple times and using the average fall times will improve confidence in the experiment's results. It's like giving the stopwatch more opportunities to show off its accuracy!
Great job! Your answers are correct. Here's a summary of the correct answers for each question:
1. Both objects hit the ground at the same time because Earth's gravity causes them to fall at the same rate.
2. Gravitational acceleration is irrespective of mass.
3. Object 1 has more surface area than Object 2.
4. The company can reduce the number of damaged boxes by designing a parachute with more surface area.
5. To improve confidence in the experiment's results, the students should drop each object 10 times and use the average of each object's fall times.
Well done, and I'm glad I could help! If you have any more questions, feel free to ask.