Objective: To identify whether positive, negative, or zero work is being done, to identify the force that is doing the work, and to describe the energy transformation associated with such work.
You are NOT using this Activity as a Logged-in student. You may log in and return to this page. Or you can do this Activity as a Guest. If you continue as a Guest, a record of completing it will NOT be stored in our database.
This is the Teacher Preview mode of this Science Reasoning task.
Teacher Preview allows teachers to preview the Questions for each Activity and their organization into Question Groups. This allows you to evaluate the appropriateness of the Activity for your students. Teacher Preview also allows you to consider whether you would like to customize the task by removing one or more of the Activities from the assignment. Customization can be done within Task Tracker when you assign the task to your class.
You are currently logged in with the username shown below. As long as you maintain an internet connection, any of the parts of this Activity that you complete will be saved in your account.
Tap on the Start Button to begin.
Up and Down
Start Teacher Preview Mode
Use Key Pad to Enter Name. Then Tap the Enter Button.
Analyze a complex graph of x-position and y-position as a function of time to relate a position to a time.
Interpret position-time graphs and vector diagrams in order to identify the an accurate characteristic of the motion of a projectile.
Wizard Difficulty Level
Conduct a more complex analysis of the plot of x-position and y-position as a function of time and combine it with the analysis of a vector diagram.
Apprentice Difficulty Level
Master Difficulty Level
No, Stay Here
Each Science Reasoning task is based on a passage or story that presents data and information or describes an experiment or phenomenon. Students must combine an understanding of science content and science reasoning skills (science practices) to answer questions about the passage or story.
Tap anywhere to view the passage.
Currently Displaying ...
Some Interactivity and Check Answer functionality is disabled when in Teacher Preview mode.
Tap to View Information:
This is the last Activity
in this task.
Up and Down
A physics teacher does a demonstration to illustrate principles of projectile motion. The demonstration involves a cart that is equipped with a spring-loaded launcher and a plastic ball. When the cart is at rest, the ball is launched straight upwards and lands back in the cart. Then the teacher sets the cart in motion at a constant speed. At a point along the track, an electronic trigger activates the launcher and the ball is given an upward push. The motion of the cart and the launched ball is captured on video. The video is analyzed using video analysis software. Among the information provided by the video analysis is information regarding the position and the velocity of the ball. Figure 1 shows the horizontal position (x) and the vertical position (y) of the ball as a function of time. The origin of the graph corresponds to the release location of the ball.
In physics, velocity is a quantity that refers to how fast an object is moving and the direction the object is moving. The direction is often represented on diagrams by a vector arrow. The direction of the arrow indicates the direction the object is moving. And the length of the arrow indicates how fast the object is moving. For objects with both horizontal and vertical motion, the horizontal and vertical velocity are represented by separate arrows.
The video analysis software produces the graphic shown in Figure 2. The position of the ball at regular intervals of time is represented by a dot. The vector arrows represent the horizontal velocity (vx) and vertical velocity (vy) of the launched projectile. The constant speed cart is shown positioned just below the ball for the last position shown on the diagram. When the ball finally falls to launcher height, it lands in the launcher.
This is the last QG
of the last Activity.
Learn More About Task Tracker and Teacher Preview.
This is the last Question
of the last Activity.
Scroll to View Whole Passage. Tap to Close.
If you return to the Main Menu, then you will lose all your progress
on this activity.
Are you sure you want to return to the Main Menu?
Template Version 1.2 Added Question Scene 4 for Table Completion