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                      In the basic car activity, when the battery is powered on, the DC motor spins
                      and moves the car in a straight line. The car moves forward or stops when the
                      switch is turned on or off, demonstrating how electric circuits, motors, and
                      mechanical movement work together to create motion.

                      Concepts

                         • Electric  Circuits  and  Motors:  You  will  explore  how  electric  power  from

                         the battery makes the DC motor run, which causes the wheels of the car to
                         move. This teaches them the concept of how electrical energy is converted
                         into mechanical motion.

                         • Switch Control and Motion: The switch allows you to control when the car

                         moves or stops by completing or breaking the circuit. This introduces the
                         concept of simple circuits and how switches function in electronic devices.

                      Observations

                      In the basic car activity, You will observe how the car moves in a straight line
                      when the switch is turned on, allowing electricity to power the motor. You will

                      notice that the car stops when the switch is turned off, as the circuit is broken
                      and the motor stops working. This activity provides a hands-on understanding
                      of how electric motors work, how energy is transferred, and how switches can

                      control devices.

                      Construct a Giant Wheel

                      Gears are special parts that help create circular motion in machines. A gear
                      is a wheel with teeth that fit together with another gear, allowing them to turn
                      and move in sync. When one gear turns, it makes the other gear turn, creating

                      a smooth, circular movement.

                      Gears are used in many machines, such as bikes, clocks, and cars. They are
                      important because they can:

                         • Change the speed of motion: Large gears can make things move slower,
                         while smaller gears can make things move faster.

                         • Change  the  direction  of  motion:  Gears  can  reverse  the  direction  of
                         movement. For example, if one gear turns clockwise, the next one will turn

                         counterclockwise.

                          20     RoboGenius (V1.0)-III

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