All of these videos are on YouTube. Some of them have ads. Check with a parent before viewing.
Marble Run
See saw - balanced and unbalanced forces
Tire swing - pendulum
Pendulums
Pendulums - Newton's Cradle
ElectroSTATIC forces
How electromagnets work
Magnets in our daily lives
DK Find Out - Forces and Motion
EZ School - Physical Science info
Ducksters - Physics for kids
Science Kids NZ - truck game