Energy Changes
Circuits
Light
Random
Extra Hard
100
Which of the following devices transforms chemical energy into light energy?
A desk lamp that plugs into the wall
A battery-powered flashlight
A streetlight
A radio
A battery-powered flashlight
100
Look at the image. A student built this circuit. When the switch is closed, the buzzer sounds but the LED bulb does not light up.
Which explains why the LED bulb did not light up?
The LED bulb is only connected with one wire.
The LED bulb is on the wrong side of the switch.
The buzzer gets the electrical energy before the LED bulb.
The buzzer is connected directly to the battery.
The LED bulb is only connected with one wire.
100
Light travels in a straight line. Which statement describes reflection of light?
Light bends as it passes through a surface.
Light is absorbed by a surface.
Light passes through a surface.
Light bounces off of a surface.
Light bounces off of a surface.
100
Kayla has a wooden rod, a steel rod, and a glass rod. How could she compare the materials to find out which transfers thermal energy best?
A. Submerge each rod in ice water to find out which loses the most heat.
B. Place the three rods in a freezer to find out which becomes the coldest.
C. Place one end of each rod in very hot water to find out which becomes hot the fastest.
D. Place the rods on a table in a warm room and find out which feels warmest after a period of time.
C. Place one end of each rod in very hot water to find out which becomes hot the fastest.
100
Which is most like the way a river makes a valley?
A. A rust stain appears on a sink with a leaky faucet.
B. A grape left in the sun loses water and becomes a raisin.
C.A paper towel uses capillary action to absorb water in a glass.
D. A spray of water pushes away grass clippings to clean a driveway.
D. A spray of water pushes away grass clippings to clean a driveway.
200
Jamie walks into a dark room and flips a light switch, turning on the light installed in the ceiling. What kind of energy was transformed into light energy when Jamie flipped the switch?
Heat energy
Electrical energy
Thermal energy
Sound energy
Electrical energy
200
Look at the image. A student built this circuit from the parts shown. The student notices that the LED bulb does not light up, which tells her that the circuit does not work.
Which part of the circuit is most likely preventing the circuit from working properly?
Battery
Switch
LED bulb
Block of wood
Block of wood
200
Which of the following statements about light are true? Select two correct answers.
Light interacts with shiny surfaces.
Light travels in a straight line.
Light can pass through any substance.
The path of light cannot change.
Light interacts with shiny surfaces.
Light travels in a straight line.
200
Mercury and gold are both metals. Unlike gold, mercury cannot be used to make jewelry because it is a liquid at room temperature. The difference in the state of matter of the two metals is an example of which type of property?
A. chemical
B. electrical
C. nuclear
D. physical
D. physical
200
A river erodes its banks for thousands of years, and deposits the eroded material at its mouth. What two landforms did the river make?
A. a hill and a delta
B. a delta and a canyon
C. a canyon and a dune
D. a dune and a delta
B. a delta and a canyon
300
Look at the image.
The battery in the drone converts _____ into _____. This energy then transforms to the energy of motion as the drone flies.
Which terms best complete the sentences?
light energy; sound energy
chemical energy; electrical energy
electrical energy; thermal energy
sound energy; light energy
chemical energy; electrical energy
300
Different parts in a circuit have different functions. The _______ provides electrical energy for a circuit. The _______ allows electrical energy to flow through the circuit.
Which terms, in order, best complete the sentences?
wire; battery
battery; wire
wire; lightbulb
battery; lightbulb
battery; wire
300
Look at the image.
A beam of light first passes through glass because the glass is _____. Then the light is _______ by the mirror.
Which words best complete the sentences?
transparent; reflected
translucent; refracted
opaque; absorbed
transparent; absorbed
transparent; reflected
300
At room temperature, what state of matter is copper?
A. gas
B. solid
C. liquid
D. plasma
B. solid
300
What are two ways ice can change Earth’s surface?
A. cracking a rock and making a U-shaped valley
B. making a dune and making a U-shaped valley
C. making a dune and making a V-shaped valley
D. cracking a rock and making a V-shaped valley
A. cracking a rock and making a U-shaped valley
400
Look at the image. A television is a device that lets you see and hear what’s happening on the screen. Televisions are usually plugged into a wall socket.
Describe the two energy changes occurring in this television.
Electrical energy is being changed to light and sound energy.
400
A student wants to build a simple circuit that will allow a buzzer to sound when a switch is turned on.
Materials, Wire, Buzzer, Battery, and a Switch
Describe how the student could use these materials to build the circuit.
The student could connect one end of the wire to the battery connect the other end of the wire to the switch. The student then could put a wire on the other end of the switch and connect the opposite end to the buzzer. The student would then need to connect another wire to the opposite end of the buzzer and connect that wire the opposite end of the battery not connected to the switch.
400
Look at the picture of clear eye glasses and sunglasses. Describe what happens to light as it reaches the different lenses of each pair of glasses.
As light passes through the lenses it is bent slightly. The clear lenses are transparent allowing light to pass and the dark lenses on the sunglasses absorb some of the light.
400
Lucy made the following observation about gases: “Gases can be easily compressed and are able to expand to fill their containers.” Lucy’s observation describes which of the following?
A. changes in state
B. states of matter
C. properties of matter
D. changes in chemical properties
C. properties of matter
400
During a rainstorm, leaves wash down a gully on a hillside. The water slows down at the foot of the hill and fans out, depositing the leaves. What geologic structure is formed in a similar way?
A. a basalt column
B. a stalactite
C. a fault line
D. a delta
D. a delta
500
Sarah poured water into a tea kettle. She placed the tea kettle on a burner of an electric stove and turned the stove on. When the water began to boil, Sarah put some hot water into a cup with a tea bag. When was electricity converted into heat?
A. pouring water into the kettle
B. placing the kettle on the stove
C. putting hot water into the cup
D. boiling the water with the burner
D. boiling the water with the burner
500
An electromagnet is shown in the figure.
A student placed a disk magnet on top of the battery to make a simple motor. When the coil was given a gentle spin, it kept turning on its own.
Which statement best explains how this motor works?
A. The magnet completes a circuit so that an electric force turns the coil.
B. Electric current makes the bottom part of the coil hot so that it flips over.
C. Electricity makes the coil act like a magnet that is repelled by the disk magnet.
D. The battery gives off heat that rises through the magnet and makes the coil spin.
C. Electricity makes the coil act like a magnet that is repelled by the disk magnet.
500
A black box and a white box are in a poorly lit room. Why is the white box easier for the eye to detect?
A. The black box refracts light, and the white box absorbs light.
B. The black box absorbs light, and the white box reflects light.
C. The black box reflects light, and the white box absorbs light.
D. The black box absorbs light, and the white box refracts light.
B. The black box absorbs light, and the white box reflects light.
500
As water cools to a temperature of zero degrees Celsius and forms ice, water molecules tend to
A. move farther apart.
B. vibrate rapidly.
C. flow more randomly.
D. gradually expand.
A. move farther apart.
500
A mountain range has hills around its edges. How are the mountains and hills alike?
A. Both have grass at the top.
B. Both are at least 1000 meters tall.
C. Both have liquid rock at their centers.
D. Both are taller than the land around them.
D. Both are taller than the land around them.