MS-PS2-2
Plan an investigation to provide evidence that the change in an object's motion depends on the sum of the forces on the object and the mass of the object.
- Physics
Scientists Say: Mass
Mass shows how much an object resists speeding up or slowing down when force is applied — a measure of how much matter is in it.
- Animals
Mantis shrimp inspires somersaults of new soft robot
Its rolling acrobatics allow this robot to move especially swiftly — much as a fictional new Disney character can.
- Physics
Why big nuts always rise to the top
X-rays scans of a box of mixed nuts now reveal why large Brazil nuts rise to the top.
- Earth
Light levitation might help explore Earth’s ‘ignorosphere’
A toy called a light mill inspired researchers to invent a new way to fly. They’re using light to levitate small nanotube-coated discs.
- Physics
Scientists Say: Acceleration
Acceleration is a change in velocity. That could mean a change in speed or in direction.
- Animals
Butterflies use jet propulsion for quick getaways
If you have ever tried to catch a resting butterfly, you know they are surprisingly difficult to nab. A new study helps explain why.
- Physics
Researchers reveal the secret to the perfect football throw
The tip of a spiraling football follows the ball’s path. If you know a thing or two about gyroscopes, this is not what you’d expect.
- Physics
How physics lets a toy boat float upside down
Buoyancy’s upward force keeps objects afloat even in unusual conditions.
- Animals
Flying snakes wriggle their way through the air
Flying snakes go tens of meters (yards) without wings. They do it by undulating back and forth and up and down, a new study shows.
- Materials Science
Self-powered surface may evaluate table-tennis play
Scientists at the Georgia Institute of Technology built a 'smart' surface on which to play table tennis. It can track the location, speed and direction of the ball.
- Tech
Teens garner some $4 million in prizes at 2017 Intel ISEF
Hundreds of teens collectively took home about $4 million in awards from the Intel International Science and Engineering Fair this week.
- Physics
Why your shoelaces untie themselves
High-speed video shows how the combined motions of a shoe’s swinging and landing on the ground provoke shoelaces to come untied.
