DIY Conservation of Momentum - Recoil 1
- This interactive explores recoil (backward movement) arising due to conservation of momentum in a system. The activity involves an astronaut in deep space carrying a small portable cannon, designed to fire a cannonball at a specified velocity.
HS-PS2-2: Use mathematical representations to support the claim that the total momentum of a system of objects is conserved when there is no net force on the system.
MS-PS2-1. Apply Newton’s Third Law to design a solution to a problem involving the motion of two colliding objects.
DIY Heat Conduction 1
- This interactive investigates heat flow by simple conduction in a metal rod, which is heated at one end. Thermometers along the length of the rod indicate the temperature rise over time along the length of the rod.
MS-PS1-4. Develop a model that predicts and describes changes in particle motion, temperature, and state of a pure substance when thermal energy is added or removed.
MS-PS3-4. Plan an investigation to determine the relationships among the energy transferred, the type of matter, the mass, and the change in the average kinetic energy of the particles as measured by the temperature of the sample.
DIY Heat Conduction 2 - Heat conductivity in metals
- Heat conductivity is the ability of a material to conduct heat. This interactive lets you compare heat conductivity in different metals, by monitoring the heat flow through metal rods heated at one end.
MS-PS1-4. Develop a model that predicts and describes changes in particle motion, temperature, and state of a pure substance when thermal energy is added or removed.
MS-PS3-4. Plan an investigation to determine the relationships among the energy transferred, the type of matter, the mass, and the change in the average kinetic energy of the particles as measured by the temperature of the sample.
Bohr-Rutherford Diagram - Interactive Exerciser
- The Bohr's model of atomic structure is used as a basis for drawing a simplified representation of the atomic structure of different elements (usually up to Z=20) known as the Bohr-Rutherford diagram. This interactive exerciser features five randomly selected elements (up to calcium) for which the user has to create the Bohr-Rutherford diagrams.
MS-PS1-1: Develop models to describe the atomic composition of simple molecules and extended structures.
HS-PS1-1: Use the periodic table as a model to predict the relative properties of elements based on the patterns of electrons in the outermost energy level of atoms
Electron Configuration using Periodic Table - Interactive Exerciser
- This interactive exerciser lets you practice writing electron configurations of atoms by referring to the periodic table. The exercise consists of 5 questions. Each question presents a randomly selected element for which you have to write the electron configuration.
HS-PS1-1: Use the periodic table as a model to predict the relative properties of elements based on the patterns of electrons in the outermost energy level of atoms
Electron Configuration using Energy Levels Hierarchy Diagram
- This interactive exerciser lets you practice writing electron configurations of atoms by referring to a diagram denoting the hierarchy of energy levels and sub-levels. The exercise consists of 5 questions. Each question presents a randomly selected element for which you have to write the electron configuration. Using the energy levels hierarchy diagram to determine the sequence of filling the orbitals.
HS-PS1-1: Use the periodic table as a model to predict the relative properties of elements based on the patterns of electrons in the outermost energy level of atoms
Orbital Diagram - Interactive Exerciser
- This interactive exerciser lets you practice constructing orbital diagrams for the selected element. The exercise consists of 5 questions. Each question presents a randomly selected element for which you have to construct the orbital diagram indicating the state of electrons in each orbital. Follow Hund's rule and construct the orbital diagram by clicking on the orbitals. Each click on the same orbital box progressively adds and removes the electrons in a sequence.
HS-PS1-1: Use the periodic table as a model to predict the relative properties of elements based on the patterns of electrons in the outermost energy level of atoms
DIY Inelastic Collision 1
- This interactive involves a perfectly inelastic collision between two toy trains of specified masses, traveling with specified constant velocities in opposite directions. The activity consists of two trials enabling you to compare the inelastic collisions between the two toy trains, for different combinations of mass and velocity.
MS-PS2-1: Apply Newton’s Third Law to design a solution to a problem involving the motion of two colliding objects.
HS-PS2-2: Use mathematical representations to support the claim that the total momentum of a system of objects is conserved when there is no net force on the system.
4-PS3-3: Ask questions and predict outcomes about the changes in energy that occur when objects collide.