Lesson: Friction and Motion Science
In this lesson, we will learn how to define friction and investigate its effect on the motion of objects in contact.
Fill in the blanks: Friction is a force between two objects that are . It causes objects to .
When James pushes down on the pedal, his bike moves forward. If he stops pedaling, it slows down and stops.
What is the name of the force that causes his bike to slow down when he stops pedaling?
When Isabella pushes down on the pedals, her bike moves in a forward motion.
What is the name of the force that acts in the opposite direction to the motion of the bike?