8th grade Science 2nd Semester test

What do all waves transfer?

• Matter

• Heat

• Electricity

• Energy

What is the number of complete waves passing a fixed point in a given amount of time?

• Amplitude

• Intensity

• Wavelength

• Frequency

What is frequency measured in?

• Milliseconds

• Miles

• Hertz

• Kilograms

Wavelengths are usually measured in ....

• seconds

• Hz

• inches

• meters

What is the distance between the calm sea and the highest wave called?

• Wave

• Frequency

• Amplitude

• Magnitude

Why does the straw appear to be bent?

• light is reflected

• light is absorbed

• light is turned

• light is refracted

When light bounces back it is _____

• Reflected
• Refracted
• Absorbed
• Optical Density

How does light travel

• It curves around corners
• Really slow
• In a straight line
• In circles

What are the parts of a longitudinal wave?

• Compressions and rarefactions
• Crests and troughs
• Compressions and crests
• Rarefactions and troughs

How would you describe the movement of a transverse wave?

• Up and down
• Back and forth
• In zigzags
• Linear