Good introduction to Newton's laws lacks hooks to grab students

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Expert evaluation by Common Sense



Subjects & Skills

Character & SEL, Critical Thinking, Science

Great for

Evaluating Media

Platforms: iPhone, iPod, Mac, Windows

Pros: Solid tutorial, style, and physics engine.

Cons: Tweaky controls and challenging play can dilute physics learning.

Bottom Line: A physics puzzler that accurately models motion but lacks the design polish and fine-tuning necessary to stand out in a crowded field.

Students can hop right into Impulse with no instruction. Let them play through a few stages -- either solo or in pairs -- and then reconvene. Facilitate a discussion on what they observed, and get them to try and describe how the balls behave. What did they observe? What strategies worked? What strategies didn't work? Why? Use this open discussion as a way to start jotting down some key behaviors of the game on a whiteboard/blackboard. The idea should be to get students to extract Newton's laws of motion simply through what they intuited through play. After you've got a good list, introduce students to the actual laws and discuss how the game models them.

Impulse aims to model Newton's laws of motion and does a good job of it. Students use motion, impact, force, and momentum to guide a ball through a level, avoiding enemies and reaching a target. Essentially, it's like an open-top box with a handful of marbles rolling around in it. The student must get one of those marbles to roll to a target without touching the others by managing forces in motion. As levels progress, new types of balls are introduced, increasing the challenge and complexity. Unlike other more patient or deliberate physics games, Impulse is hectic. It's a bit like controlling a car after it has hit an ice patch; there's physics involved, but it's not necessarily the thing that grabs focus. This style of learning can work for some students in short bursts, but sustained play requires determination.

By playing through the game, experimenting with the controls, and devising strategies, students should intuit a basic understanding of Newton's laws. However, since the difficulty ramps up so quickly, students will find themselves pushing a ball through 20 other moving targets. As a result, success is less dependent on physics knowledge and more on-the-fly thinking, luck, and, most important, persistence. Easily discouraged students might be better served by alternatives with more support and engagement that allow for planning, precision, and creativity.

Learning Rating

Overall Rating

This game is fun at first and has an appealing style. But difficulty scales quickly, and the touchy interface makes repeated failures feel like bad design rather than poor play.


Newton's laws are clearly the root of this game. Players will get a feel for force and motion, but learning doesn't seem to increase with more gameplay; the game doesn't adapt to the player. 


There's an exceptional guide for the first few levels, and the interface and UI are easy to master. Beyond this, however, there are no teacher supports or relevant measures of success.

Common Sense reviewer

Community Rating

Quickly Bored

This game has some real potential to be a great way to teach physics, but the beginning levels are very boring and students will lose interest in it almost immediately. If you can get students to continue playing to the higher levels, there is some potential for problem solving and the opportunity to learn the laws of motion. But students will be ready to stop playing within just a few minutes of starting and are unlikely to advance beyond the first level.

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