Light & Waves
Which material allows light to pass through but blocks sound?
A. Clear glass
B. Solid steel
C. Empty space
D. Wood
A. Clear glass
Sound is created when objects:
A. Reflect light
B. Vibrate
C. Absorb heat
D. Bend waves
B. Vibrate
Which two items are most likely to produce static electricity when rubbed together?
A. Shoes and carpet
B. Hands and fingers
C. Sticks and branches
D. Paper and pencil
A. Shoes and carpet
Plants begin photosynthesis by absorbing:
A. Sound energy
B. Mechanical energy
C. Radiant energy
D. Heat energy
C. Radiant energy
Which option correctly shows the order of colors we see in a rainbow?
A. Red, orange, yellow, green, blue, violet
B. Red, yellow, orange, gray, green, violet
C. Violet, green, white, black, blue
D. Red, orange, yellow, pink, green, violet
A. Red, orange, yellow, green, blue, violet
Which materials allow sound to travel faster than air? (Choose the best answer)
A. Steel, water, wood
B. Air, carbon dioxide, water
C. Vacuum, air, steel
D. Plastic, rubber, air
A. Steel, water, wood
Which material could complete a broken circuit?
A. Eraser
B. Glass
C. Nail
D. Paper
C. Nail
What type of energy does a moving wind turbine have?
A. Chemical
B. Sound
C. Mechanical
D. Thermal
C. Mechanical
When light bends as it moves from air into water, this is called:
A. Reflection
B. Refraction
C. Absorption
D. Deflection
B. Refraction
Sound moves fastest through solids because:
A. Solids are heavier
B. Solids have more energy
C. Particles are closer together
D. Sound bounces more
C. Particles are closer together
A wire wrapped around an iron core that carries electricity creates:
A. Lightning
B. An insulator
C. An electromagnet
D. An open circuit
C. An electromagnet
When a light bulb is on, electrical energy changes into:
A. Sound energy
B. Radiant energy
C. Nuclear energy
D. Solar energy
B. Radiant energy
Why can you see a mountain reflected in a calm lake?
A. Light is blocked
B. Light is bent
C. Light bounces off the surface
D. Light is absorbed
C. Light bounces off the surface
Sound is best described as the ________ of energy.
A. Creation
B. Transfer
C. Destruction
D. Storage
B. Transfer
Turning off a light switch causes:
A. A closed circuit
B. A parallel circuit
C. A series circuit
D. An open circuit
D. An open circuit
Which activity does NOT show energy being used to do work?
A. Raking leaves
B. Cleaning a room
C. Walking
D. Sitting on the couch
D. Sitting on the couch
Which words best describe how light moves?
A. Compression waves
B. Mechanical waves
C. Transverse waves
D. Thermal waves
C. Transverse waves
Which is an example of sound being used for medical purposes?
A. Talking on the phone
B. Sonar mapping the ocean
C. Ultrasound imaging
D. Echoes in a canyon
C. Ultrasound imaging
Which of the following are conductors?
A. Yarn and plastic
B. Glass and rubber
C. Aluminum and copper
D. Paper and wood
C. Aluminum and copper
What energy transformation occurs when bread is toasted?
A. Electrical → Mechanical
B. Electrical → Thermal
C. Thermal → Electrical
D. Mechanical → Electrical
B. Electrical → Thermal