Chapter 8 Science Test Review

Which type of energy is formed by vibrating objects?

• Sound energy
• Light energy
• Heat energy
• Kinetic energy

Which type of energy does moving water have?

• Kinetic energy
• Chemical energy
• Thermal energy
• Potential energy

A guitarist strums two strings of the same thickness on a guitar. The first string vibrates more quickly thanthe second string. What is true about the pitch of the strings?

• The pitch of the first string is the same as the pitch of the second string.
• The pitch of the first string is unrelated to the pitch of the second string.
• The pitch of the first string is lower than the pitch of the second string.
• The pitch of the first string is higher than the pitch of the second string.

Which of the following can act like a prism?

• A brick
• a raindrop

• A mirror
• A feather

Which is the best description of a sound wave when the pitch of the sound is very high?

• Low frequency
• It has a high frequency

• Long wavelength
• Soft amplitude

How do white light waves act when they enter a prism?

• Absorption
• They bend or refract

• Reflection
• Dispersion

How is heat transferred from a campfire to the people?

• conduction

• insulation

• convection

• radiation

Which of the following shows convection?

• a mobile turns from a candle burning below it

• Freezing water in an ice cube tray
• Baking cookies in the oven
• Stirring a cup of coffee

Explain why ice might melt after you have skated on it.

• The ice absorbs the heat generated from skating, causing it to melt
• The friction between the skates and the ice generates heat, melting the ice
• The pressure from skating causes the ice to melt slightly, creating a thin layer of water on the surface.
• The ice is naturally prone to melting after being skated on due to its composition

If you want to stay cool on a hot day, what color shirt should you wear?

• White
• Yellow
• Black
• Red