Know It All Friday - 8th Science - 10-8-21

Which type of wave does sound travel in?

• Transverse
• Longitudinal

What type of wave is this?

• Transverse
• Longitudinal

What is represented by the blue lines?

• Trough
• Crest
• Wavelength
• Amplitude

What part is the arrow pointing to?

• Crest
• Trough
• Amplitude
• Wavelength

Which wave in the diagram has the greatest wavelength?

• 1
• 2
• 3
• 4

The action of a wave bouncing off a surface is called __________________.

• rarefaction
• refraction
• reflection
• diffraction

A magnet cannot not move which of the following objects?

• a paper clip
• a nail
• a toothpick
• a staple

How is Earth's magnetic field similar to that of a magnet?

• It's shaped like a horseshoe.
• It has north and south poles.
• It is made plastic.
• It is hundreds of miles long.

Earth acts like a giant magnet because its center is made up MOSTLY of

• granite
• limestone
• iron
• nickel

Where are the magnetic force the strongest in this picture?

• Location 1
• Location 2
• Location 3
• Location 4