PHYS- 1307 6172-21542 | GIZMOS | Student Exploration | Energy Conversion in a System Guaranteed A+ Score: Updated

PHYS- 1307 6172-21542 | GIZMOS

| Student Exploration |

Energy Conversion in a System

Name: Jackie Rosales Date: 1/19/17

Student Exploration: Energy Conversion in a System

Vocabulary: energy, gravitational potential energy, heat energy, kinetic energy, law of

conservation of energy, specific heat capacity

Prior Knowledge Questions (Do these BEFORE using the Gizmo.)

A battery contains stored energy in the form of chemical energy.

1. What are some examples of devices that are powered by batteries? A calculator, batteries,

flashlights.

2. What different forms of energy are demonstrated by these devices? Most of them

demonstrate kinetic energy/electrical energy.

Gizmo Warm-up

Energy constantly changes from one form to another, but

in a closed system, the total amount of energy always

remains the same. This concept is known formally as the

law of conservation of energy.

The Energy Conversion in a System Gizmo™ allows you

to observe the law of conservation of energy in action. In

the Gizmo, a suspended cylinder has gravitational

potential energy. When the cylinder is released, the

gravitational potential energy is converted into kinetic

energy, which causes the stirrer in the water to spin.

1. What is the initial temperature (T) of the water? 25 Celsius

2. Click Play ( ). What happens as the cylinder drops? The temperature increases and

the cylinder decreases in height as in it lowers from its original position in mid-air.

3. What is the final temperature of the water? 29.69 Celsius

4. Why do you think the temperature of the water increased? I think that the movement

created by the little turbine fan within the beaker transferred more kinetic energy which adds

heat energy to the water. Such as when a liquid turns into gas the molecules have a higher

kinetic energy than the liquid.

This study source was downloaded by 100000837854628 from cnn.com on 12-03-2021 03:47:58 GMT -06:00

https://www.cnn.com/file/21699407/Gizmo-Energy-Conversions/

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