Energy

What are the three types of energy transfer?

• Potential, Kinetic, Constant

• Conduction, Convection, Electromagnetic

• Conduction, Convection, Radiation

• Absorption, Reflection, Refraction

An iron becomes hot and is used to iron a shirt. What kind of energy transfer does this describe?

• Conduction

• Convection

• Radiation

Steam rising from a hot cup of tea is an example of___________.

• Radiation

• Convection

• Absorption

Getting an X-Ray shows an example of what kind of energy transfer?

• Reflection

• Absorption

• Radiation

Which state of matter does conduction happen most often?

• Solid

• Liquid

• Gas

In convection, the transfer of energy is caused by a difference in molecular density. True or False?

• True

• False

What is an example of Potential Energy?

• Someone rollerblading down a steep hill

• A stretched rubber band

What is an example of Kinetic Energy?

• A quarterback's arm before throwing a pass

• A rollercoaster doing a 360 degree turn

Then sun's ultraviolet rays have a short wavelength. Shorter wavelengths indicate ___________ energy

• stronger

• weaker

• no

The sun's UV rays bounce off of the earth in the form of heat. What type of waves are these?

• Radio

• Infrared

• UV