Second 9 Weeks Exam Review: Question Preview (ID: 28415)


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What is density?
a) The amount of weight an object has. b) The amount of space an object takes up. c) The amount of matter in a given amount of space. d) The number of atoms in a molecule.
Why does a metal spoon in a pot of hot water get hot?
a) radiation b) conduction c) convection d) burning
What type of energy is light?
a) electrical b) nuclear c) electromagnetic d) chemical
How does a thermometer work?
a) The red liquid contracts and rises when the temperature is hot. b) The red liquid expands and rises when the temperature is hot. c) The red liquid contracts and rises when the temperature is cold. d) The red liquid expands and rises when the temperature is cold.
The following are all signs that a chemical change may have taken place.
a) change in color, state of matter, odor, bubbles form b) temperature change, shape change, light produced c) solid forms, temperature change, color change, odor d) color change, odor, density, bubbles form
What kind of stored potential energy is found in fuels?
a) gravitational potential energy b) chemical potential energy c) elastic potential energy d) solar potential energy
Which of the following is not a form of energy?
a) heat b) light c) friction d) electricity
How would you increase your potential energy?
a) Increase your speed and mass b) Increase your speed and distance c) Increase your mass and height d) increase your mass and volume
How does heat get from the sun to the earth?
a) radiation b) convection c) photosynthesis d) conduction
Why does ice float in water?
a) Ice has less mass than water. b) Ice is more dense than water. c) Ice is less dense than water. d) Ice has more mass than water.
When a liquid changes to a gas, this is called
a) condensation b) evaporation c) sublimation d) freezing
What tool is used to measure the volume of a liquid?
a) balance b) graduated cylinder c) spring scale d) meter stick
On the periodic table, the atomic number tell you
a) the mass of the atom b) the number of protons or electrons c) the number of neutrons d) the number of valence electrons
Two or more different atoms combine chemically to form a new substance called
a) a molecule b) an atom c) a compound d) a mixture
If you were to travel to the moon, your weight would remain the same, but your mass would change.
a) True b) False c) d)
What energy transformation takes place in a dam?
a) chemical to electrical b) electrical to mechanical c) mechanical to nuclear d) mechanical to electrical
What does 'heat is a one way street' mean?
a) heat only travels from cooler areas to warmer areas. b) heat only travels from east to west. c) heat only travels from warmer areas to cooler areas. d) heat only travels from top to bottom.
In what state of matter do the molecules move freely and slide past each other?
a) gas b) liquid c) solid d) plasma
In which state of matter to atoms move so quickly that the electrons escape from the electron cloud?
a) gas b) liquid c) solid d) plasma
Everything in the universe is made of tiny particles called
a) protons b) neutrons c) atoms d) molecules
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