Light Energy
Sound Energy
Circuits
Thermal Energy
Electrical Energy
Miscellaneous
100
Which object is used in cameras, DVD players, telescopes, and microscopes to refract light?
lens, lamp, laser, mirror
lens
100
For an experiment on sound, Amir makes a drum by stretching a rubber balloon over a cylinder. Which safety equipment should Amir use?
rubber gloves
100
Turning on a bulb in a lamp demonstrates that electrical energy can be used to produce which of the following?
light energy and heat
100
A solar cooker uses sunlight. What kind of energy does it generate?
Light Energy
100
A vacuum cleaner uses a type of energy that comes from the moment of electrons. What type of energy is it?
Electrical
100
What kind of energy does a thermometer measure?
the average kinetic energy of particles in a substance
200
Emma watched light pass through a prism. Which statement gives a correct analysis of the information she observed?
The light changed direction as it passed into and out of the prism.
200
Max has been exploring the uses of sound energy. He has discovered that scientists use sound-energy technology to make images of underwater objects. What is this technology called?
sonar
200
The girl shown below is using a common electrical appliance.
The intended use of this appliance demonstrates that an electric current can produce which of the following?
heat and kinetic energy
200
Which of the following uses combustion to generate thermal energy?
an electric car, a lava lamp, a geothermal plant, a rocket to outer space
a rocket to outer space
200
Which of the following uses electricity for energy? a windmill, a street light, a solar cooker, a wind-up toy
a street light
200
A solar cooker uses sunlight. What kind of energy does it generate?
Thermal energy
300
A student is using a computer to collect and record information about light. Which is a well-defined question to input into a search engine to learn if light can only move through matter, such as air or water?
Does light travel in waves?
Does light travel in a straight line?
Does light travel through a vacuum?
Does anything travel faster than light?
Does light travel through a vacuum?
300
Jake is doing observational testing to learn about sound volume and pitch. From which object will he hear a low volume and a low pitch?
refrigerator, musical triangle, smoke detector, fire engine siren
refrigerator
300
Why is it appropriate to use plastic or rubber as materials to cover electric plugs and outlets?
These forms of matter insulate electrical energy.
300
Caleb has a warm metal block. What equipment should he select to measure a possible change in thermal energy of the block?
a thermometer
300
When you see lightning flash in the sky, which of the following is an explanation for what caused it?
The charge between the ground and the clouds is different
300
Scientists tested students’ hearing twice a year. Students who often listened to music through ear buds were more likely to have hearing loss. What explanation could scientists construct from this direct evidence?
Listening to music on ear buds causes hearing loss. Listening to music on ear buds makes hearing loss more likely.
Listening to music without ear buds is safe. Listening to music without ear buds is riskier.
Listening to music on ear buds makes hearing loss more likely.
400
Which object would be useful to demonstrate light being reflected clearly in a single new direction?
a curved lens
400
Suppose you are listening to a musician using energy to play a song on his trumpet. What forms of energy is he using?
mechanical energy and sound energy
400
Which of the following forms of matter has the ability to conduct electrical energy?
wood, rubber, plastic, copper
copper
400
Barbie burned her waffles in the toaster. What reasonable explanation can she construct from analyzing this direct evidence?
The toaster gave off heat energy
400
Why are metals classified as conductors of electrical energy?
Metal contains electrons that can easily move through it.
400
Solar panels are used to harness sunlight energy. How could solar panels be used in a house?
to absorb energy from the sun’s radiation to heat water
500
Ana wants to explore the uses of light energy. She discovers that one form of light energy is used to
• help doctors make cuts in surgery
• help detectives analyze fingerprints
• cut steel in factories
What form of light energy is it?
laser
500
What property of sound energy is essential for scientists to make images of an object?
reflection
500
Study the circuit symbols below.
Suppose you drew a diagram to demonstrate the flow of electricity in a circuit. Which symbol would show that electricity is not flowing in the circuit?
open circuit
500
Harold used a thermometer to collect and analyze the temperature of water from the sources listed in the table below.
Harold learned in science class that mass and temperature affect the amount of thermal energy of a substance. Which sample has the most thermal energy?
The Bathtub
500
After walking across a rug, James feels a spark between his hand and a doorknob.
James has observable evidence that his body was charged when he touched the doorknob. What is a reasonable explanation for how James’s body became negatively charged?
Electrons moved from the rug to his body.
500
Selim has been out in cold weather and his hands feel frozen. He holds a cup of hot tea in his hands. What kind of heat transfer is he using to increase the thermal energy in his hands?
conduction