Energy/Electricity
Individuals and communities can conserve energy and resources by...
A) Leaving the lights on during the day
B) Burning more coal to power factories
C) Recycling glass and plastic
D) Brushing their teeth with the water running
C) Recycling glass and plastic
How is sound transferred from one object to another?
A) Through the movement of air particles
B) Through the reflection of light waves
C) Through the process of conduction
D) Through the release of heat energy
A) Through the movement of air particles
True or False: Light can travel through a vacuum?
True
Which of these objects would NOT be attracted to a magnet?
A) Paper clip
B) Nail
C) Rubber Band
D) Scissors
C) Rubber Band
True or False: Energy cannot be created or destroyed. Energy transforms into different forms.
True
What type of circuit will allow electricity to flow?
A) Open
B) Closed
C) Cute
B) Closed
What type of waves are created by sound?
A) Longitudinal
B) Transverse
C) Compression
D) Tidal
C) Compression
Which statement BEST explains what light does when it shines on a mirror?
A) Light passes through and is reflected by the mirror
B) The subject's eyes see an exact replica in the mirror
C) Light strikes the mirror and is reflected by the mirror at the same angle
D) Light strikes the mirror and is reflected poorly because of its rough surface
C) Light strikes the mirror and is reflected by the mirror at the same angle
Which of the following examples are conductors? Select all correct answers
A) Yarn
B) Aluminum Pipe
C) Glass Tube
D) Copper Wire
E) Plastic Straw
B) Aluminum Pipe
AND
D) Copper Wire
Identify the energy transformations of a windmill.
A) Wind--mechanical--electrical
B) Hydropower--wind--electrical
C) Electrical--Chemical
D) Solar--Thermal--Electrical
A) Wind--Mechanical--Electrical
Sam does not like the idea of using electricity to power each wagon. Sam wants to conserve energy from a renewable resource. Which form of energy will be the best renewable resource to conserve energy?
A) Potential
B) Thermal
C) Solar
D) Electric
C) Solar
All of the following transmit sound.
Order the objects in the order that they transmit sound from SLOWEST to FASTEST
A) Water in a pool
B) A metal rod
C) Air in a balloon
C) Air in a balloon
A) Water in a pool
B) A metal rod
Light travels in what type of waves?
A) Compression
B) Tidal
C) Transverse
D) Mechanical
C) Transverse
Which of the following is NOT an example of the use of energy to do work?
A) Raking leaves in the yard
B) Cleaning your room
C) Going for a walk
D) Sitting on the couch
D) Sitting on the couch
Which of the following is NOT part of the scientific method?
A) Observation
B) Clarification
C) Hypothesis
D) Conclusion
B) Clarification
Which of these are examples of energy conservation?
A) Burning more coal in the grill
B) Turning out the lights when you leave a room
C) Turning the volume up in the car
D) Shutting down your computer when not using it
B) Turning out the lights when you leave the room
AND
D) Shutting down your computer when not using it
An elephant can use its voice to communicate with other elephants far away. A bat flying close to the elephant cannot hear the message, though. Why can't the bat hear the elephant?
A) Elephants make sound waves at frequencies lower than bats can hear
B) Elephants make sound waves at frequencies higher than bats can hear
C) Elephants make sound waves that are too loud for bats to hear
D) Elephants make sound waves that are too soft for bats to hear
A) Elephants make sound waves at frequencies lower than bats can hear
Which word best describes why the straws look bent?
A) Reversed
B) Reflection
C) Refraction
C) Refraction
A student researched and took notes on different kinds of magnets. Which set of notes correctly describes properties of magnets?
1) Magnets: Are only permanent; have north and south poles; like poles attract; do not have a magnetic field
2) Magnets: Can be permanent or temporary; have north and south poles; opposite poles attract; have a magnetic field
3) Can be permanent or temporary; have north and south poles; opposite poles attract; have a magnetic field
2) Magnets: Can be permanent or temporary; have north and south poles; opposite poles attract; have a magnetic field
Which of the following are examples of radiant energy being transformed into thermal energy?
A) Solar panels converting sunlight to electricity
B) Sunlight heating up water
C) Sunlight warming up the inside of a car
D) Wind turbines generating electricity
E) A water wheel turning
B) Sunlight heating up water
C) Sunlight warming up the inside of a car
When battery is attached to the circuit, the speaker buzzes. Which statement explains the transformation of energy in the circuit?
A) Kinetic Energy in the battery transfers to kinetic energy when air in the speaker moves to make a sound.
B) Potential energy from the battery transfers to potential energy when air in the speaker moves to make a sound
C) Potential energy from the battery transforms to kinetic energy when air in the speaker moves to make a sound
D) Kinetic energy from the battery transforms to potential energy when air in the speaker moves to make a sound
C) Potential energy from the battery transforms to kinetic energy when air in the speaker moves to make a sound
A student stretched plastic wrap over a glass container and sprinkled uncooked rice on top of the plastic wrap.
The student then struck a turning fork with a rubber mallet, and the fork started producing a sound. When the tuning fork was held close to the plastic wrap, the rice grains began moving. Which statement about sound is supported by this observation?
A) Sound can be blocked by a barrier
B) Sound waves travel in all directions
C) Small objects, such as the rice grains, absorb sound
D) Sound waves carry energy from a vibrating object to other objects
D) Sound waves carry energy from a vibrating object to other objects
The number of wavelength in a given unit of time is the --
A) Compression
B) Frequency
C) Vibration
D) Amplitude
B) Frequency
Label the parts of a wave: (Show me on the Newline Board or Whiteboard)
Use these words to label:
Wavelength
Crest
Trough
Students will show on the whiteboard or newline
A young child looks through the curtains in their window. They can tell that it is daylight, but they cannot see the tree outside the window. Which term describes the child's curtains?
A) Opaque
B) Refractive
C) Transparent
D) Translucent
D) Translucent