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Quiz 1.7
Quiz 1.7 for Friday September 27th
Question | Answer |
---|---|
What is mechanical energy? | energy from MOVING parts, if something is moving, there's mechanical energy! |
What is thermal energy? | energy from HEAT |
What is electrical energy? | energy from electricity, if something plugs in or has a battery there is electrical energy! |
What is a conductor? | something that ALLOWs electricity to flow through freely |
Examples of conductors? | copper, steel, iron, other metals |
What is an insulator? | something that STOPS electricity from flowing |
What are some adaptations that an animal living in water might have? | scales and fins |
How would you separate a mixture of sand and water? | with a filter |
If an object floats in water it is? | less dense |
If an object sinks in water it is? | more dense |
What processes on Earth does the Sun affect? | evaporation, wind, plants making their own food |
What happens to a solid when it's temperature is increased? | it melts |
What happens to a liquid when it's temperature is increased? | it evaporates |
Examples of things that are LESS dense than water include... | lamp oil, vegetable oil, alcohol, wood, plastic |
Examples of things that are MORE dense than water include... | syrups, honey, glass, steel |
What does soluble mean? | CAN dissolve in water |
What does insoluble mean? | CANNOT dissolve in water |
What are some properties of gases? | they have mass, they take up space, they can expand, they can flow |
What could a fossil of a shell or fish tell us about an area's past? | the area was once covered in water |
What does a closed circuit look like? | it is a closed circular path that includes BOTH sides of the battery and BOTH sides of the lightbulb |
What materials are needed to build a working circuit? | battery, wires, light bulb |
What supplies the power for a simple electrical circuit? | the battery |
What does a spring scale measure? | force |