20048 AC Science Year 6 Physical sciences
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How do wind and water generate electricity? - 2<br />
Use the text on page 71 to complete the following.<br />
I. Fill the gaps in the sentences.<br />
Energy can be ________ 1 from one ________ 2 to another when it<br />
is ________ 3 between things.<br />
2. (a) Write another word for each type of energy.<br />
(i) potential _________ _ (ii) kinetic _________ _<br />
f<br />
a a<br />
a a<br />
a<br />
(b) Kinet i c en ergy co mes in many orms. Rea rrange the letters to find three of them.<br />
(i) cce hil mn (<br />
(ii) iln o o r t t (<br />
(iii) C ce eill r t (<br />
3. Describe how the energy in moving water or wind is converted to electricity.<br />
4. (a) What is the two-way relationship between current and magnetic field?<br />
(b)<br />
In what way is the magnet in a generator moving and how does its magnetic field<br />
move?<br />
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5. (a) What is the difference between step-up and step-down transformers?<br />
(b)<br />
Why are transformers needed?<br />
People in different parts of the world have access to a variety of sources of energy that can be used<br />
to generate electricity. Discover the main ways in which Australia and other countries across the world<br />
generate electricity. Are we doing enough to reduce the use of fossil fuels?<br />
AUSTRALIAN CURRICULUM SCIENCE (<strong>Year</strong> 6)<br />
m<br />
www.ricpublications.com.au<br />
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