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# ZingPath: Work and Energy

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## Work and Energy

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Explore the full path to learning Work and Energy

Physical Science

### Learning Made Easy

You will get to learn the definition of energy and observe real-life examples of energy conversions. Then explore the interaction between force and displacement.

### Now You Know

After completing this tutorial, you will be able to complete the following:

• Define energy in different forms.
• Make connection between real life examples and energy forms.
• Define work.
• Identify the relationship between work and energy.

### Everything You'll Have Covered

Why is it insufficient to define energy only as "the capacity to do work"?

~ Sometimes it is difficult to see work being done, such as in mechanical events where a force causes an object to move a certain distance, or in energy conversions. However, it is easier to see a change taking place. Therefore, it is better to define energy as the capacity to cause a change.

Describe the change taking place in each of the following situations in terms of energy:

a) a heater turned on to heat a room

~ When a heater is turned on, the temperature in the room increases. Electrical energy is converted to thermal energy.

b) a lamp on a desk turned on to do homework

~ When a lamp is turned on, it shines light on the work area. Electrical energy is converted to light energy.

c) a plant placed in a sunny corner of a room

~ When a plant stays in the sunny corner of a room for a while, the plant grows. Light energy from the sun is converted into chemical energy.

d) a battery-powered radio turned on in the kitchen

~ When a radio is turned on, chemical energy is converted to electrical energy. Additionally, electrical energy is then converted to sound energy.

### Tutorial Details

 Approximate Time 2 Minutes Pre-requisite Concepts Students should be able to define the following terms: conversion of energy, energy, and work. Course Physical Science Type of Tutorial Animation Key Vocabulary conversion of energy, energy, work