# 22 Results

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When will objects float and when will they sink? Learn how buoyancy works with blocks. Arrows show the applied forces, and you can modify the properties of the blocks and the fluid.

نوع المادة:
محاكاة
Provider:
Provider Set:
المحاكاة التفاعلية لموقع PhET
المؤلف:
Archie Paulson
Carl Wieman
Chris Malley
Jonathan Olson
Kathy Perkins
Kelly Lancaster
Noah Podolefsky
Patricia Loblein
Sam Reid
10/01/2010
Unrestricted Use
CC BY
Rating

Learn about conservation of energy with a skater dude! Build tracks, ramps and jumps for the skater and view the kinetic energy, potential energy and friction as he moves. You can also take the skater to different planets or even space!

نوع المادة:
محاكاة
Provider:
Provider Set:
المحاكاة التفاعلية لموقع PhET
المؤلف:
Carl Wieman
Danielle Harlow
Kathy Perkins
Michael Dubson
Patricia Loblein
Sam Reid
07/02/2008
Unrestricted Use
CC BY
Rating

Explore the forces at work when you try to push a filing cabinet. Create an applied force and see the resulting friction force and total force acting on the cabinet. Charts show the forces, position, velocity, and acceleration vs. time. View a Free Body Diagram of all the forces (including gravitational and normal forces).

نوع المادة:
محاكاة
Provider:
Provider Set:
المحاكاة التفاعلية لموقع PhET
المؤلف:
Kathy Perkins
Noah Podolefsky
Patricia Loblein
Sam Reid
10/01/2010
Unrestricted Use
CC BY
Rating

Learn how friction causes a material to heat up and melt. Rub two objects together and they heat up. When one reaches the melting temperature, particles break free as the material melts away. Arabic Language.

Material Type:
Simulation
Provider:
Provider Set:
PhET Interactive Simulations
Author:
Carl Wieman
Danielle Harlow
Michael Dubson
Mindy Gratny
06/02/2008
Unrestricted Use
CC BY
Rating

Visualize the gravitational force that two objects exert on each other. Change properties of the objects in order to see how it changes the gravity force.

Material Type:
Simulation
Provider:
Provider Set:
PhET Interactive Simulations
Author:
Carl Wieman
Noah Podolefsky
Patricia Loblein
Sam Reid
02/02/2013
Unrestricted Use
CC BY
Rating

Move the sun, earth, moon and space station to see how it affects their gravitational forces and orbital paths. Visualize the sizes and distances between different heavenly bodies, and turn off gravity to see what would happen without it!

Material Type:
Simulation
Provider:
Provider Set:
PhET Interactive Simulations
Author:
Chris Malley
Emily Moore
John Blanco
Jon Olson
Kathy Perkins
Noah Podolefsky
Patricia Loblein
Sam Reid
02/07/2011
Unrestricted Use
CC BY
Rating

Join the ladybug in an exploration of rotational motion. Rotate the merry-go-round to change its angle, or choose a constant angular velocity or angular acceleration. Explore how circular motion relates to the bug's x,y position, velocity, and acceleration using vectors or graphs.

نوع المادة:
محاكاة
Provider:
Provider Set:
المحاكاة التفاعلية لموقع PhET
المؤلف:
Kathy Perkins
Mindy Gratny
Sam Reid
08/02/2011
Unrestricted Use
CC BY
Rating

Can you avoid the boulder field and land safely, just before your fuel runs out, as Neil Armstrong did in 1969? Our version of this classic video game accurately simulates the real motion of the lunar lander with the correct mass, thrust, fuel consumption rate, and lunar gravity. The real lunar lander is very hard to control.

نوع المادة:
محاكاة
Provider:
Provider Set:
المحاكاة التفاعلية لموقع PhET
المؤلف:
Michael Dubson
01/26/2007
Unrestricted Use
CC BY
Rating

Can you avoid the boulder field and land safely, just before your fuel runs out, as Neil Armstrong did in 1969? Our version of this classic video game accurately simulates the real motion of the lunar lander with the correct mass, thrust, fuel consumption rate, and lunar gravity. The real lunar lander is very hard to control.

نوع المادة:
محاكاة
Provider:
Provider Set:
المحاكاة التفاعلية لموقع PhET
المؤلف:
Michael Dubson
06/02/2010
Unrestricted Use
CC BY
Rating

A realistic mass and spring laboratory. Hang masses from springs and adjust the spring stiffness and damping. You can even slow time. Transport the lab to different planets. A chart shows the kinetic, potential, and thermal energy for each spring.

نوع المادة:
محاكاة
Provider:
Provider Set:
المحاكاة التفاعلية لموقع PhET
المؤلف:
Kathy Perkins
Michael Dubson
08/02/2009
Unrestricted Use
CC BY
Rating

Learn about position, velocity, and acceleration in the "Arena of Pain". Use the green arrow to move the ball. Add more walls to the arena to make the game more difficult. Try to make a goal as fast as you can.

Material Type:
Simulation
Provider:
Provider Set:
PhET Interactive Simulations
Author:
Michael Dubson
Mindy Gratny
Sam Reid
10/30/2006
Unrestricted Use
CC BY
Rating

Try the new "Ladybug Motion 2D" simulation for the latest updated version. Learn about position, velocity, and acceleration vectors. Move the ball with the mouse or let the simulation move the ball in four types of motion (2 types of linear, simple harmonic, circle).

نوع المادة:
محاكاة
Provider:
Provider Set:
المحاكاة التفاعلية لموقع PhET
المؤلف:
Michael Dubson
Sam Reid
07/02/2009
Unrestricted Use
CC BY
Rating

Learn about position, velocity, and acceleration graphs. Move the little man back and forth with the mouse and plot his motion. Set the position, velocity, or acceleration and let the simulation move the man for you.

Material Type:
Simulation
Provider:
Provider Set:
PhET Interactive Simulations
Author:
Carl Wieman
Danielle Harlow
Kathy Perkins
Sam Reid
10/04/2005
Unrestricted Use
CC BY
Rating

Build your own system of heavenly bodies and watch the gravitational ballet. With this orbit simulator, you can set initial positions, velocities, and masses of 2, 3, or 4 bodies, and then see them orbit each other.

نوع المادة:
محاكاة
Provider:
Provider Set:
المحاكاة التفاعلية لموقع PhET
المؤلف:
Danielle Harlow
Michael Dubson
Mindy Gratny
11/15/2007
Unrestricted Use
CC BY
Rating

Build your own system of heavenly bodies and watch the gravitational ballet. With this orbit simulator, you can set initial positions, velocities, and masses of 2, 3, or 4 bodies, and then see them orbit each other.

نوع المادة:
محاكاة
Provider:
Provider Set:
المحاكاة التفاعلية لموقع PhET
المؤلف:
Danielle Harlow
Michael Dubson
Mindy Gratny
01/02/2011
Unrestricted Use
CC BY
Rating

Play with one or two pendulums and discover how the period of a simple pendulum depends on the length of the string, the mass of the pendulum bob, and the amplitude of the swing. It's easy to measure the period using the photogate timer. You can vary friction and the strength of gravity. Use the pendulum to find the value of g on planet X. Notice the anharmonic behavior at large amplitude.

نوع المادة:
محاكاة
Provider:
Provider Set:
المحاكاة التفاعلية لموقع PhET
المؤلف:
Michael Dubson
Patricia Loblein
07/02/2012
Unrestricted Use
CC BY
Rating

Blast a Buick out of a cannon! Learn about projectile motion by firing various objects. Set the angle, initial speed, and mass. Add air resistance. Make a game out of this simulation by trying to hit a target.

نوع المادة:
محاكاة
Provider:
Provider Set:
المحاكاة التفاعلية لموقع PhET
المؤلف:
Michael Dubson
06/02/2008
Unrestricted Use
CC BY
Rating

Explore forces, energy and work as you push household objects up and down a ramp. Lower and raise the ramp to see how the angle of inclination affects the parallel forces acting on the file cabinet. Graphs show forces, energy and work.

نوع المادة:
محاكاة
Provider:
Provider Set:
المحاكاة التفاعلية لموقع PhET
المؤلف:
Carl Woieman
Danielle Harlow
Kathy Perkins
Patricia Loblein
Sam Reid
11/02/2009
Unrestricted Use
CC BY
Rating

Investigate how torque causes an object to rotate. Discover the relationships between angular acceleration, moment of inertia, angular momentum and torque.

Material Type:
Simulation
Provider:
Provider Set:
PhET Interactive Simulations
Author:
Kathy Perkins
Patricia Loblein
Sam Reid
02/02/2012
Conditional Remix & Share Permitted
CC BY-NC-SA
Rating

This video is meant to be a fun, hands-on session that gets students to think hard about how machines work. It teaches them the connection between the geometry that they study and the kinematics that engineers use -- explaining that kinematics is simply geometry in motion. In this lesson, geometry will be used in a way that students are not used to. Materials necessary for the hands-on activities include two options: pegboard, nails/screws and a small saw; or colored construction paper, thumbtacks and scissors. Some in-class activities for the breaks between the video segments include: exploring the role of geometry in a slider-crank mechanism; determining at which point to locate a joint or bearing in a mechanism; recognizing useful mechanisms in the students' communities that employ the same guided motion they have been studying.

نوع المادة:
Lecture
Provider:
MIT
Provider Set:
أزهار معهد ماساتشوستس للتكنولوجيا MIT
المؤلف:
Daniel D. Frey
MIT BLOSSOMS