The lessons are useless if you just blindly guess and stumble through the various steps. There is ample research to show that the effectiveness of the lesson is obtained by thinking about your answer at each stage.
The problems are taken with permission from the textbook "Physics for Tomorrow's World" by E.L. McFarland and A.J. Hirsch, (Ed. 2007).
Since these lessons were written for another purpose, at the end of each problem you will see a statement "Return to Unit X". This will indicate to you that you have reached the end of the lesson. This is not a hyperlink so you will have to exit the lesson yourself by closing your browser.
1-18g Unit conversion
Problem 2-1(c) Av. speed
Problem 2-10 Speed and velocity
Problem 2-43 Free fall
Problem 2-62 Distance and speed
Problem 2-86 Linear Kinematics
Problem 2-95 Linear Kinematics
Problem 2-98 Linear Kinematics
Problem 2-99 v-t graph
Problem 2-101 Linear Kinematics
Problem 3-9 Vector
Problem 3-25b Vector
Problem 4-21 Projectile
Problem 4-23 Projectile
Problem 4-54 Projectile
Problem 4-57 Projectile
Problem 4-62 Centripetal acc.
Problem 4-72 Centripetal acc.
Problem 5-51 Force and Kinematics
Problem 5-57 Translational Equil.
Problem 5-62 F, accel., and tension
Problem 5-102 Friction force
Problem 5-108 Force and Kinematics
Problem 6-4 Friction coefficients
Problem 6-7 Friction coefficient
Problem 6-11 Dynamics with friction
Problem 6-23 Centripetal force
Problem 6-47 Dynamics with friction
Problem6-53 parts (a), (b), and (c) Centripetal force
Problem 7-23 Work
Problem 7-35 Work-energy theorem
Problem 7-43 Work, grav. PE
Problem 7-49(b) Energy cons.
Problem 7-51 Energy cons.
Problem 7-62 Energy cons. with friction
Problem 7-65 Energy cons. with friction
Problem 7-83 Power
Problem 8-34 Elastic collision
Problem 8-43 2 dim. collision
Problem 8-61 Cons. of Momentum
Problem 8-75 Inelastic collision
Problem 8-82 Impulse-momentum
Problem 8-86 Inelastic collision
Problem 9-56 Vector Gravitational Field
Problem 9-76 Geosynchronous orbit
Problem 10-31(a) Vector electric field
Problem10-38 Addition of Electric fields
Problem 10-40 Vector electric field
Problem 10-49 Electron deflection
Problem 11-33 Electric potential
Problem 11-35 Potential and kinematics
Problem 11-46 Current and potential change
Problem 11-55 Potential and kinematics in thundercloud
Problem 11-71 Grav & Elec Potential
Problem 12-14 Ohm's law
Problem 12-22 Simple circuit
Problem 12-42 Electric power
Problem 12-58 Resistor network
Problem 13-32 Standing waves on string
Problem 13-72 Double source interference