TIMSS - PHYSICS 3 - Light and Sound

What shape does light travel in?

• Waves
• Circles
• Squares
• Diamonds

Light is predictable because it will always travel in a _________ line.

• Curvy
• Straight
• Backwards
• Crazy

What is the speed of light in air?

• 140,000 miles/sec
• 186,000 miles/sec
• 60 miles/hour
• 120 miles/hour

What types of matter can light travel through?

• Some solids, liquids, gases and all empty space (vacuum)
• All solids, liquids, gases, and empty space (vacuum)
• Some solids, liquids, and gases
• Only empty space (vacuum)

What does light do when it hits a smooth, flat surface?

• Reflect
• Refract
• Absorb
• Diffuse

What does light do when it hits an object that it cannot pass through?

• It creates a shadow
• It passes through anyway

What image shows light being refracted?

• 
• 
• 
• 

What picture shows light being absorbed by what it shines on?

• 
• 
• 
• 

White light is made up of _________________ colors.

• 10
• 3
• 7
• 70

What is the relationship between wavelength and frequency?
 As the wavelength becomes ___________frequency becomes ___________

• Longer, higher
• higher, longer 
• shorter, longer
• higher, lower