Definitions
Explanations of a Process
Draw a Diagram
True or False
Fill in the Blank
100
An object that takes up more space than another object has a great _________.
What is: mass
100
Students were given the following materials to create a solution: sand, sugar, water, rocks and sticks. Which materials could they use to make the solution and explain why those materials would create a solution.
What is: Sugar and water. The water and the sugar are equally distributed when mixed together and cannot be distinguised by the naked eye therefore creating a solution.
100
Draw an example of a CO2 molecule.
What is: See picture.
100
Glass is an example of a conductor.
What is: False, glass is an example of an insulator.
100
The amount of matter in an object is __________.
What is: mass
200
Define electricity.
What is: Electricity is a form of energy that is carried through wires and is used to operate machines.
200
Describe what happens to the potential energy of a ball as it rolls down a hill from a position of rest at the top of the hill.
What is: At the top of the hill the ball will have the greatest amount of potential enery and the least amount of kinetic energy. As the ball rolls down the hill its potential energy will transform into kinetic energy.
200
Look at this picture of a green house. Once the radiation of the warm air is let into the green house, where does the energy go?
What is: The energy bounces off of everything inside the green house because it cannot be let out of the green house.
200
Most light rays that strike a convex lens bend and focus to a point.
What is: True
200
A sound with greater _____ has a _____ pitch.
What is: Frequency; Higher
300
Define conduction.
What is: When one molecule is heated it begins to move and shake rapidly, it passes some of its heat energy to another molecule until they are all hot.
300
When you turn on a lamp, what type of energy transformation takes place?
What is: electrical energy to light energy.
300
Draw an example of a simple circuit.
What is: *see poster for diagram*
300
A student is using the north pole of a magnet to test for attraction. It will be attracted to the south pole of another magnet. True or False? Why?
What is: True. This occurs because opposites attract.
300
An antacid tablet dissolving in water is an example of ______ change.
What is: Chemical
400
______ is the flow of electrical charges through a material.
What is: Current
400
How are conductors and insulators different? Give an example of a conductor and an example of an insulator.
What is: A conductor is a material through which an electric current can move easily. Example: Copper An insulator stops the electrical current. Example: Rubber
400
Explain the phase change of water when it heated and draw a diagram to illustrate your explanation.
What is: This phase change occurs because heat increases the motion and the spacing of the particles in water causing the water to expand and take up more space.
400
When particles in water are heated they turn into a new substance.
What is: False, they have more space in between them.
400
An objects' _______ energy depends in part on its size.
What is: Thermal
500
Particles in salts arrange themselves in a regular geometric pattern to form ________.
What are: crystals
500
Explain how the density of an object and the density of the liquid that the object is placed in determines whether or not the object is buoyant (floats).
What is: if the object's density is less than the liquid's density it will float. If the object's density is greater than the liquid's density it will sink.
500
Draw an illustration of two separate magnets that are attracted to each other, make sure to include the positive and negative signs.
What is: See attached picture.
500
Conduction is used to heat up food in a microwave.
What is: False, Radiation is used to heat up food in a microwave using microwave radiation.
500
_____ is a force that keeps a satellite in orbit.
What is: Gravity
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