# Others Like “Effect of Trebuchet Arm Length or Counterweight Mass on Projectile Distance”

Showing top 20 results.
Science Fair Project Idea
 Science Buddies has several fun robotics projects, like the and , where you use arts and crafts materials to make part of a robot. Have you ever wanted to design a more-advanced, sturdier, or fancier looking robot? Then computer-aided design (CAD) and 3D printing might be for you; both are simpler than you think! The directions on this page will give you an introduction to these technologies so you can design and print your own robot. Figure 1 shows an arts-and-crafts version of an Art Bot… Read more
Robotics_p025
+ More Details
- Less Details
 Time Required Average (6-10 days) Prerequisites None Material Availability Readily available Cost Average (\$40 - \$80) Safety No issues
Science Fair Project Idea
 Did you know that you can lift an object that's heavier than you are? Just use a lever! In this science project you'll build a tabletop lever and measure how much effort it takes to lift an object using it. Read more
Phys_p065
+ More Details
- Less Details
 Time Required Very Short (≤ 1 day) Prerequisites None Material Availability Readily available Cost Very Low (under \$20) Safety No issues
Science Fair Project Idea
 In physics class, you have probably rolled your eyes at some point after being assigned a "projectile motion" homework problem where you use equations to predict how a ball will move through the air. This experiment will show you just how fun that problem can be by using a real catapult to launch a ball and videotaping it as it flies along its path. Then, you will analyze the video and compare it to what the equations predicted. If you have ever wondered if those equations in your physics… Read more
Phys_p089
+ More Details
- Less Details
 Time Required Average (6-10 days) Prerequisites This project requires a basic understanding of algebra, trigonometry (sine and cosine functions), and physics (kinematics—two-dimensional projectile motion), or the willingness to learn about these subjects on your own. Material Availability This project requires access to a video camera (not included in the cost estimate) and the purchase of a catapult kit. (See the Materials and Equipment list for details.) Cost Average (\$40 - \$80) Safety Minor injury possible. Never aim the catapult at anyone, and keep your hands and fingers clear of the moving catapult arm when launching the catapult.
Science Fair Project Idea
 In our , we provided you with a template file that included default material properties and physics simulation settings. These settings include friction, gravity, and temperature — all of which can drastically change how fast your robots move. However, we did not explain what exactly all these physics simulation settings meant, or how to change them. You can access the physics settings through the Physics Settings tab after entering the Physics Sandbox mode, as shown in Figure 1: … Read more
Robotics_p019
+ More Details
- Less Details
 Time Required Short (2-5 days) Prerequisites Familiarity with VoxCAD software. We recommend completing our [# ProjectIdea Name="Robotics_p016" Value="HtmlAnchor" HtmlText="introductory VoxCAD project" #] first. Material Availability This project requires the free VoxCAD software and a computer running Microsoft® Windows®. Cost Very Low (under \$20) Safety No issues
Science Fair Project Idea
 How can you motivate students and teachers to make positive changes in their school? Why not try using what is in everyone's pocket—a smartphone! With this project you'll try your hand at harnessing the power of crowdsourcing and mobile technology by creating an app that motivates users to change their school for the better. Do not worry about the app creation, the MIT App Inventor tool makes that part easy; the instructions provided here will lead you through it step-by-step. Will… Read more
CompSci_p052
+ More Details
- Less Details
 Time Required Long (2-4 weeks) Prerequisites None Material Availability This Computer Science Project requires the use of a computer with Internet access. An Android device is helpful but not required. Cost Very Low (under \$20) Safety No issues
Science Fair Project Idea
 You may have seen movies or read books where armies in medieval times catapulted large rocks or other objects at castles (or each other!). These armies used different types of catapults to accomplish different goals — for example, launching things over or into castle walls to knock them down. In this experiment, you will use a ping-pong ball catapult to lay siege to a "castle" and find the right settings to hit your targets. Read more
Phys_p085
+ More Details
- Less Details
 Time Required Average (6-10 days) Prerequisites None Material Availability Specialty items. See the Materials and Equipment list for details. Cost Low (\$20 - \$50) Safety Minor injury possible. Keep your fingers clear when launching the catapult. Do not aim the catapult at people.
Science Fair Project Idea
 Are you an artist, or do you enjoy the process of making art? What kind of art do you create? Do only humans make art? Not all the time. Robots can create art, too. Robots can be programmed and "taught" to do all kinds of things, such as delivering medications to hospital patients or putting together a car on an assembly line. The Vangobot™, shown in the video below, paints pictures with brushes and paint, and in a distinct, unique style—just like a human artist. … Read more
Robotics_p007
+ More Details
- Less Details
 Time Required Long (2-4 weeks) Prerequisites Programming experience is needed to do this project. Material Availability This project requires a robotics platform like VEX®, LEGO® Mindstorms® or Arduino®. Cost Very High (over \$150) Safety Use caution with tools when assembling the robot. Minor injury is possible.
Science Fair Project Idea
 What do an octopus, an elephant's trunk, and an earthworm have in common? They are all squishy, bendable and flexible because they do not have any bones inside. You might not typically think of robots as "squishy," but scientists are increasingly trying to create soft robots that look and move like animals. In this project you will use a "soft robot simulator" to design and race your own squishy robots. Can you come up with the fastest design? Read more
Robotics_p016
+ More Details
- Less Details
 Time Required Average (6-10 days) Prerequisites None Material Availability Readily available Cost Very Low (under \$20) Safety No issues
Science Fair Project Idea
 Measuring the value of a resistor with a multimeter is pretty simple. You set the multimeter to measure resistance, connect the two leads to the resistor (possibly using some handy alligator clips), and read the resistance value. This is called a two-point measurement (one probe on each of the two resistor leads). But what if the resistance you want to measure is very small, in the milli or micro-ohm (mΩ or μΩ) range? This can introduce problems because many low-cost multimeters… Read more
Elec_p025
+ More Details
- Less Details
 Time Required Short (2-5 days) Prerequisites To do this project, you should be familiar with Ohm's Law, and with the basics of using a digital multimeter (see our Multimeter Tutorial to learn more). Material Availability This project requires two multimeters. Cost Average (\$50 - \$100) Safety No issues
Science Fair Project Idea
 The benefits of Western medicine have evolved tremendously, with a wealth of tests and medications to treat many conditions. But remembering to take medication or perform a test regularly, consistently, and at specific times can be difficult for elderly people with short-term memory loss, or teenagers absorbed in activities. With mobile devices becoming our constant companions, could a smartphone or tablet offer a solution? The Massachusetts Institute of Technology (MIT) has created a simple… Read more
HumBio_p041
+ More Details
- Less Details
 Time Required Average (6-10 days) Prerequisites None Material Availability This project requires the use of a computer with Internet access (preferably wireless). See the Materials list for details. Cost Very Low (under \$20) Safety No issues
Search Refinements
Areas of Science
Behavioral & Social Science
Earth & Environmental Science
Engineering
Life Science
Math & Computer Science
Physical Science
Difficulty

Cost
Time
Material Availability