# Unit 4 Common Assessment Review.pdf - High School Physical...

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High School Physical Science Unit 4 Assessment Items 1. A student drops three different objects from a height of 1 meter inside a vacuum chamber. A motion sensor detects the acceleration of each object. The students construct the following table. Object Mass (kg) Force (N) Glass Marble 0.030 0.30 Baseball 0.15 1.5 Tennis Ball 0.060 0.60 Steel Marble 0.080 0.80 What relationship can be determined based on analysis of the data? A. Inertia and mass have an inversely proportional relationship. B. All three objects have the same downward acceleration. C. Acceleration and mass have a directly proportional relationship. D. The final velocity, time, and mass all have a directly proportional relationship.
2. A man is pushing a 50 N box up a ramp that is 10 meters long. The height of the ramp is 6 meters. How much work was done on the box?
1 © Rabieh J Hafza 2019
2 © Rabieh J Hafza 2019 3. Students set up an experiment to find their velocity as they walk on the practice football field that is 50 meters long. The field is marked every 5 meters and the students are given the following criteria. Step 1. Students stop the stopwatch every time they reach a 5 meter increment. Step 2. Students start the stopwatch once they start moving until reaching the next 5 meter mark. A. Step 3: Students will put the data in table form. Analysis of Data: The student moves at a constant speed for the entire 50 meter trip. B. Step 3: Students will put the data in graphical form with position on the y-axis and time on the x-axis. Analysis of Data: The student moves at a constant acceleration until the thirty meter mark where is there is no motion and then constant acceleration until the 50 meter mark. C. Step 3: Students will put the data in graphical form with speed on the y-axis and time on the x-axis. Analysis of Data: The slope of the graph shows a constant speed until the thirty meter mark where there is no motion and then constant speed until the fifty meter mark. D. Step 3: Students will put the data in graphical form with the position on the y-axis and the time on the x-axis. Analysis of Data: The slope of the graph shows a constant speed until the thirty meter mark where there is no motion and then constant speed until the fifty meter mark. Criteria for Experiment: Walk at a constant pace. Stop for 10 seconds every 30 meters and include it in the data set.
3 © Rabieh J Hafza 2019 4. Students are investigating Newton’ s Laws of motion. The students are all using a 0.25 kg block, spring scale, and motion sensor; however, each student is carrying out the experiment on three different surfaces. Each surface is known to have a different frictional force for the 0.25 kg block. The students pulls the block across each surface and obtains the acceleration from the motion detector. Each student documents their findings on a large table at the front of the classroom.