# CHILD DEVELOPMENT PEDAGOGY

## GROWTH DEVELOPMENT CHILD

### FORMATIVE ASSESSMENT

 Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A marble on a paper roller coaster track transforms gravitational potential energy into kinetic energy.
 A True B False C Either A or B D None of the above
Explanation:

Detailed explanation-1: -As the marble rolls down the hill its potential energy is converted to kinetic energy (its height decreases, but its velocity increases). When the marble goes back up the loop its height increases again and its velocity decreases, changing kinetic energy into potential energy.

Detailed explanation-2: -When holding the marble at the top of the marble run, the marble experiences potential energy. Potential energy is stored energy. Once the marble is released, gravity pulls the marble down, and potential energy is transformed to kinetic energy. Kinetic energy is energy of motion.

Detailed explanation-3: -Explanation When the marble is at the top of the ramp, it has potential energy because gravity will pull it down. This is called gravitational potential energy. When the marble is released, it begins to move, and the potential energy changes into kinetic energy.

Detailed explanation-4: -The movement of a roller coaster is accomplished by the conversion of potential energy to kinetic energy. The roller coaster cars gain potential energy as they are pulled to the top of the first hill. As the cars descend the potential energy is converted to kinetic energy.

Detailed explanation-5: -On a roller coaster, energy changes from potential to kinetic energy and back again many times over the course of a ride. Kinetic energy is energy that an object has as a result of its motion.

There is 1 question to complete.