Answer the following question given this paragraph: Light moving from air into water is bent ___________ the normal. Q: Light moving from air into water is bent ___________ the normal? Choices: - less - thinly - Longly - more A:
more
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Answer the following question given this paragraph: When we consider a chemical reaction, we need to take into account both the system and the surroundings. The system includes the components involved in the chemical reaction itself. These will often take place in a flask, a beaker, a test tube, or some other container. The surroundings include everything that is not part of the system. When potassium reacts with water, part of the heat energy generated in the reaction is released into the surroundings. The boundary between system and surroundings is arbitrary, and it is generally chosen in a way that makes observations and calculations easier. Q: When we consider a chemical reaction, we need to take into account both the system and what? Choices: - date - fluctuations - time - sorroundings A:
sorroundings
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Answer the following question given this paragraph: Which of the following is matter and not matter? 1. the moon 2. an idea for a new invention Answer 1. The moon is matter. The invention itself may be matter, but the idea for it is not. To understand matter and how it changes, we need to be able to describe matter. There are two basic ways to describe matter: physical properties and chemical properties. Physical properties are characteristics that describe matter as it exists. Some of many physical characteristics of matter are shape, color, size, and temperature. An important physical property. Q: Physical properties are characteristics that describe what as it exists? Choices: - imagination - antimatter - life - matter A:
matter
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Answer the following question given this paragraph: A machine is any device that makes work easier by changing a force. Work is done whenever a force moves an object over a distance. The amount of work done is represented by the equation:. Q: What do you call any device that makes work easier by changing a force? Choices: - technology - invention - battery - machine A:
machine
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