Matter
Physical Properties
Forms of Energy
Light
Electricity
100
Which of the following would provide the best evidence that air is made of matter?
A. Making a small hole in a tire and measuring the amount of time it takes for it to become flat
B. Comparing the volume of an empty balloon to the volume of an inflated balloon
C. Measuring the temperature of the air in several rooms of varying sizes
D. Finding the volume of the air between marbles in a jar by pouring water over them
B. Comparing the volume of an empty balloon to the volume of an inflated balloon
100
Which of the following properties of a candy bar is most likely to change if it melts in a student’s pocket?
A. Mass
B. Shape
C. Weight
D. Color
B. Shape
100
The table shows some different forms of energy and some ways they are used. Which of the following could be used to complete the table?
A. Provide energy for refrigerators
B. Communicate with other people
C. Used to produce electrical energy
D. Allows people to see around them
B. Communicate with other people
100
Which of the following best models how light is reflected?
A. An arrow hitting a target
B. A ball bouncing off a wall
C. An apple falling from a tree
D. A marble rolling down a ramp
B. A ball bouncing off a wall
100
A student places samples of different materials in the space between the wires, indicated by the arrow in the illustration above, and observes whether or not the bulb lights up. What property of the materials can the student determine with this test?
A. Whether or not the material is magnetic
B. Which materials have a density greater than water
C. Whether or not the material conducts electricity
D. Which materials are made of copper
C. Whether or not the material conducts electricity
200
A table comparing some physical properties of metals and nonmetals is provided. A student examined four samples of matter and recorded some of their properties. Which of the following is most likely a non-metal?
A. Sample A is a shiny solid that conducts heat well.
B. Sample B is a dull solid and does not conduct heat well.
C. Sample C is good at conducting heat and electricity.
D. Sample D is a shiny solid.
B. Sample B is a dull solid and does not conduct heat well.
200
Two objects are placed in water. One sinks and the other floats. Which of the following is the most reasonable conclusion that can be drawn from this data?
A. One object is magnetic and the other is not.
B. One object is a solid and the other is a liquid.
C. One object has a greater density than the other.
D. One object is much larger than the other.
C. One object has a greater density than the other.
200
Hot-air balloons rise when a burner, positioned under the opening of the balloon, uses propane to create a blast of fire. What form of energy causes a hot-air balloon to rise into the air?
A. Mechanical
B. Light
C. Thermal
D. Electrical
C. Thermal
200
Light traveling through the air moves in a straight line. An object viewed through water looks different because light rays that travel through water are –
A. bent
B. bounced
C. reflected
D. absorbed
A. bent
200
Which of the following shows a complete path through which electricity can flow?
A
B
C
D
A
300
Students are investigating to see if magnets will attract objects through different materials. They observe that the setup shown below works and that the magnet attracts the object.
The object will most likely still be attracted to the magnet if which change is made?
A. The magnet is moved much farther away from the glass.
B. The glass is replaced with a piece of paper.
C. The nail is replaced with a plastic spoon.
D. The glass is replaced with a thick piece of wood.
B. The glass is replaced with a piece of paper.
300
A glass of ice water begins to form small droplets of water on the outside. What is the best explanation for where these water droplets come from?
A. Water in the air condenses on the cold glass.
B. Water leaks through small holes in the glass.
C. As the ice melts, it creates more water.
D. Air pressure pushes water up out of the glass
A. Water in the air condenses on the cold glass.
300
The illustration shows a lamp plugged into an outlet. When the lamp is turned on and the bulb is lit, the circuit demonstrates which of the following?
A. Sound energy changing to light energy
B. Electrical energy changing to light energy
C. Electrical energy producing mechanical energy
D. Light energy producing sound and heat energy
B. Electrical energy changing to light energy
300
A student placed a pencil in a glass of water. The pencil appears broken because light –
A. always travels in a straight line.
B. bends when it passes through water.
C. makes the water in the glass evaporate.
D. reflects the pencil on the water’s surface.
B. bends when it passes through water.
300
Which of the following correctly describes one way in which static electricity is different from the electricity used by humans to run things in their homes?
A. Static electricity is a quick release of energy.
B. Static electricity requires magnets and coils of wire.
C. Static electricity flows at a constant rate.
D. Static electricity always goes in the same direction.
A. Static electricity is a quick release of energy.
400
Substances A and B are both white crystals. A student stirs 5 grams of substance A into one container of water, and 5 grams of substance B into another container of water. After ten minutes none of substance A is visible in its container and all of the crystals of substance B can be seen on the bottom of its container. What is the most likely conclusion that can be drawn from these observations?
A. Substance A is soluble in water and Substance B is not.
B. Both Substance A and Substance B are soluble in water.
C. Substance B is soluble in water, but Substance A is not.
D. Neither Substance A nor Substance B is soluble in water.
A. Substance A is soluble in water and Substance B is not.
400
In the diagram below, what terms refer to the changes in state of matter indicated by arrow 1 and arrow 2?
A. 1 = evaporating, 2 = melting
B. 1 = melting, 2 = freezing
C. 1 = melting, 2 = evaporating
D. 1 = freezing, 2 = evaporating
C. 1 = melting, 2 = evaporating
400
Which of the following devices is designed to change mechanical energy to sound energy?
A. Guitar
B. Candle
C. Battery
D. Flashlight
A. Guitar
400
The picture shows what a student observed when he looked through a hand lens at a penny. What happens to light passing through a hand lens that makes the image of the penny appear larger? The light is –
A. absorbed.
B. reflected.
C. refracted.
D. stopped.
C. refracted.
400
When wires are connected to a battery and a lightbulb in a circuit, the lightbulb is lit. Which types of energy are produced by the battery and lightbulb?
A. Electrical and light
B. Sound and light
C. Electrical and sound
D. Light and sound
A. Electrical and light
500
Sugar was added to water and stirred until it completely dissolved. Which of the following correctly describes what happened to the sugar?
A. The mass of the sugar decreased.
B. The sugar disappeared and no longer exists.
C. The sugar is evenly distributed in the water.
D. The crystals of sugar have entered the atmosphere.
C. The sugar is evenly distributed in the water.
500
In which of the following examples is a mixture separated by using physical properties?
A. Making coffee by using heated water
B. Freezing juice to make flavored ice
C. Using a filter to get the sand out of puddle water
D. Stirring water and salt to make salt water
C. Using a filter to get the sand out of puddle water
500
The illustration shows a hand generator. Turning the handle of the generator causes the bulb to light up. This device changes what type of energy into what other type?
A. Mechanical to electrical
B. Electrical to sound
C. Thermal to mechanical
D. Light to thermal
A. Mechanical to electrical
500
The diagram shows a periscope used to see objects that are behind or under a barrier. What makes it possible to see an object when looking through a periscope? The periscope –
A. contains mirrors that reflect the object
B. magnifies small objects so they can be seen
C. absorbs the light rays passing through it
D. separates the light into different colors
A. contains mirrors that reflect the object
500
A student forgets to use a plastic coated wire and notices that the wire connecting to the battery is very hot. Which statement below explains why the wire is hot?
A. The wire is not insulated and electrical energy from the wire produces heat.
B. The wire is not insulated and electrical energy flowing from the battery produces heat.
C. The wire is not insulated and electrical energy from the bulb heats the wire
D. The wire is not insulated and electrical energy from the switch produces heat.
B. The wire is not insulated and electrical energy flowing from the battery produces heat.