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assessment
Before you do the assessment, revise the key concepts of this unit first. Can you do these things? Put a 3 in the .
Knowledge and Understanding
Distinguish between light from a source of light and light reflected by an object. Describe some phenomena of the reflection of light. Explain the different images formed in a mirror and on aluminium foil based on the properties of the reflection of light. Explain why people can see the Moon while the Moon does not give off light. Describe how friction is produced. State the relationship between the direction of friction and the direction of an object’s motion. List some examples of applying friction in daily life.
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16
Skills and Processes
Use a spring balance properly to measure the size of force. Do fair tests to explore how the weight and surface of an object affect the size of friction.
16
Values and Attitudes
Be aware that reflectors are important in our daily lives, and care about the problem of light pollution. Appreciate the application of friction in product designs to meet specific needs.
15
16
1. Which topic in this unit interests you the most? What specific question do you want to explore further?
2. Which methods are you going to use when you explore the question? Put a 3 in the . observe do surveys do experiments search for information
do projects
write scientific journals
read books
others:
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