Question

Classify the following as kinetic energy or potential energy. __________i. Water falling from Maria Cristina Falls __________ii. Rollerblading __________iii. Erlenmeyer flask on top of the laboratory table __________iv. Energy released during a mudslide

Answer 1

Required Answer:

i) Water falling from Maria Cristina Falls

As water is falling from a height and is in state of motion, it is possessing Kinetic energy. The potential energy is converted into kinetic energy as a object or a substance falls from a certain height$.$

ii) Rollerblading

In rollerblading, we will observe changing potential and kinetic energy accessing to the motion of the skater. But more specifically, it possesses Kinetic Energy.

iii) Erlenmeyer flask on top of the laboratory table

Here the flask is kept stationary on a table and obviously the top of the table is at some height from the ground. We know that, potential energy is possessed by body at a certain height. So, it possesses Potential Energy.

iv) Energy released during a mudslide

Mudslide is the erosion of soil by water flowing from higher region to low lying areas through a slope. As the water is sliding from a certain height to lower height and it is in the state of motion, it possesses Kinetic energy.

And we are done !!

Answer 2

1. Water falling from Maria Cristina Falls: Kinetic Energy

When water falls from Maria Cristina Falls, it is moving and we know any thing which is moving has kinetic energy in it. Thus have kinetic energy in it.

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2. Rollerblading: Kinetic Energy

In a rollerblading, the skater converts potential energy into kinetic energy. Thus we can say mainly Kinetic energy is present in it

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3.Erlenmeyer flask on top of the laboratory table: Potential energy.

If the flask isn't moving or if no external force is applied on it, then it has potential energy in it.

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4.Energy released during a mudslide: Kinetic Energy

Mud slides are due to the soil erosion. As it slides from a higher sloppy area to lower one, it has motion in it. Thus it posses kinetic energy.