Page 130 - York Global Science 6 - Physical Science

2 Measuring Energy, Power Ratings and Energy Use

Objectives

➜ ➜ Compare power ratings of appliances in watts (W, kW).

➜ ➜ Compare amounts of energy transferred (J, kJ, kW hour).

Vocabulary

• Appliance • Kilowatt • Power
• Energy • Kilowatt-hour • Transfer

• Joule • Kinetic energy • Watt

Let’s Start

How much energy does a fridge use?

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