Physlet Bank

Java Applets on Physics - Walter Fendt
PhET Interactive Science Simulations
General Physics Java Applets - Surendranath Physics Applets – University of Oregon
Physlets - Davidson

Simple Pendulum

This Java applet demonstrates the variation of elongation, velocity, tangential acceleration, force and energy during the oscillation of a pendulum (assumed with no friction).

Related Assignments – Period of a Pendulum Lab (Unit I)

Motion with Constant Acceleration

This Java applet shows a car moving with constant acceleration.  three graphs (x, v and a vs t) illustrate the motion of the vehicle.

Related Assignments – Motion on an Inclined Plane lab (Unit III)


Moo Motion

Investigate position and velocity vs time graph shapes for constant velocity and acceleration.

Related Assignment:  Stacks of Curves , Moo Motion (by G.Richert) (Unit III)


 Simulates freefall on the Earth, Moon or Mars.

Related Assignments: Acceleration Due to Gravity lab, Wile E. Coyote on the Planet Newtonia, Wile E Coyote in Free Fall on Newtonia's Moon,  (Unit III)

Moving Man

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.

Related Assignment:  Unit 2 CP Lab 2 - The Moving Man, (Unit II)

The Ramp

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.

Related Assignments:Motion on an Inclined Plane  (Unit III)

Catch Up

Compares objects moving at constant velocity and constant acceleration

Related Assignment:  Speeder and the Patrolman  (Unit III)


Apply the Brakes

Applet shows a yellow dot moving to the right. It intially moves with a uniform velocity . The brake button in the bottom panel can be pressed at any time to decelerate the motion of the dot.

Related Assignment:  Stacks of Curves ( Unit III)

Equilibrium of Three Forces

A simple experiment concerning the equilibrium of three forces is simulated here: Weights are suspended from three tied cords. Two of the cords run over frictionless pulleys. The three forces acting on the knot (coloured arrows) are in equilibrium.

Related Assignements:  Force Table Lab (Unit IV)

Vector Addition and Subtraction

Study vector components and addition using the triangle and parallelogram rules.

Related Assignments:  Vector Math (Unit IV)

Vector Addition

Learn about vector components and vector addition.

Related Assignements:  Vector Components Lab (Unit IV)

Projectile Motion

Launch a Buick!

Related Assignments:  Projectile Motion at an Angle (Unit VI)

Sample of Student application of principles learned


Relative Motion

This java applet let you view objects from different frame of reference.

Related assignments:  Relative Motion (by G. Richert)


Motion in an Elevator

Examine net force on a person in an elevator – can vary mass of person and acceleration of elevator.

Related Assignments: Elevator Mini Lab (Unit V)

Modified Atwood Machine

This Java applet simulates an air track glider setup, as it is used for experiments on constant acceleration motion.  The mass of the wagon, the value of the hanging mass and the coefficient of friction can be changed.

Related Assignments:  Atwood Machine lab (Unit V)

Atwood Machine

Enter values for the masses of the two balls in fields "Mass1" and "Mass 2". Then hit go to see them fall. The acceleration of mass 1 is displayed.

Related Assignments:  Atwood Machine lab (Unit V)


Measure forces of kinetic and static friction by pulling on spring scale.  Normal force can be changes.

Related assignment: Online Lesson – Friction (Unit V)

Projectile Problems

Predict and verify the solutions to various projectile motion problems.

Related Assignments:  Projectile Motion Problems (by G. Richert) (Unit VI)

Sample of Student application of principles learned


Hooke's Law

Measure length of spring for different loads and different spring stiffnesses.

Related assignment:  Spring has Sprung lab (Unit VII)


Gravitation Potential Energy

"Let's Learn about Potential and Kinetic Energy!"

Related Assignments:  Gravitation Potential Energy (by G. Richert) (Unit VII)

Roller Coaster

Related Assignments: Roller Coaster – Conservation of Energy ,  Roller Coasters (design project) (Unit VII) , samples of student work

Funderstanding Roller Coasters

Related Assignments: Roller Coaster – Conservation of Energy ,  Roller Coasters (design project) ) (Unit VII)

Elastic and Inelastic Collision

This Java applet deals with the extreme cases of a collision process illustrated by two wagons.

Related Assignments: Elastic Collisions and Inelastic Collisions (by G. Richert) (Unit VIII)

Circular Motion Activities

Make measurements on carnival ride simulations.

Related Assignments:  Circular Motion Activities (Unit IX)