Energy & waves

Energy & Waves

Poll

What's your favorite food?

• Grilling Out or Home Cooking

• Pizza or Italian

• Mexican or Latin

• Salad

• Asian or Sushi

Poll

Who do you want to Eat your favorite food with?

• Someone Special

• My Family

• Your Friends

• By myself

  (I don't have to share!)

Multiple Choice

what type of energy does the sun provide?

• convection

• conduction

• electromagnetic radiation

• mechanical

Multiple Select

the electromagnetic spectrum consists of

• short high energy gamma rays

• medium wave lengths like visible light

• longer length rays such as radiowaves

Multiple Choice

what type of rays do satellites use?

• Gamma

• Ultraviolet

• Infrared

• Radio

Multiple Choice

what type of waves are simulated to visualize broken bones?

• gamma rays

• radio rays

• x-rays

• infrared rays

Multiple Choice

why weather radar images have colors?

• because precipitation and clouds really do look red or green or yellow from that distance.

• because the intensity of precipitation alters the wavelength of waves the radar sends out & creates

Multiple Choice

Some of the Sun's harmful rays get filtered out by Earth's Atmosphere, Which rays cause skin damage, like sunburns?

• Gamma

• Ultraviolet (UV)

• Infrared (IR)

• Microwaves

Open Ended

As the Sun shines on Earth's surfaces, does everything heat evenly?

Is Earth's surface all even?

Multiple Select

Which surfaces heat more slowly? (check all that apply)

• sunny

• reflective

• dark objects

• shady

Multiple Select

Which object will retain more heat/energy?

• an object in direct sunlight

• an object in shade

Multiple Choice

why does this pencil look bent in water?

• absorption

• refraction

• reflection

Multiple Choice

Why do you see your face when you look in a mirror?

• reflection

• refraction

• absorption

Multiple Choice

How do Solar panels work?

• absorbing energy

• transmitting energy

• scattering energy

Multiple Choice

Why on Earth, does the sun appear yellow and the sky blue?

• clouds reflect sunlight

• the atmosphere absorbs sunlight

• the atmosphere scatters sunlight

• clouds refract sunlight so it appears blus

Multiple Choice

Andy has 4 beakers of liquids. The temperatures are:

Beaker A: 16 C,

Beaker B: 24 C

Beaker C: 7 C

Beaker D: 35 C

Based on the data, which statement is true?

• All the particles are movign the same unitl there is a phase change.

• Particles in beaker D are moving faster than particles in Beaker B

• The movement of the particles cannot be determined by temperature alone.

• Particles in beaker D are moving slower than particles in Beaker B

Multiple Choice

If you hold Ice in your hand it will melt. Which best describes this?

• ice transfers thermal energy to the environment

• thermal energy transfers from the hand and melts it

• ice transfers cold energy to the surrounding air

Multiple Choice

An iron skillet on a stove is used to fry bacon. A metal spoon left in a pot of soup on the stove gets too hot to touch. An aluminum playground slide gets hot on a summer day. What can be concluded by those statements about the properties of metals?

• Metal conducts heat.

• Metal conducts electricity.

• Metals are good insulators.

• Metals combine with non-metals.

Multiple Choice

My friend and I got each got an 8 ounce hot apple cider at the farmers market. I had the vendor pour mine into my yeti travel mug. My friend used the paper cup from the vendor. After we were done shopping my cider was still hot but my friends was cold. Why would this be?

• the paper cup is an insulator and allow thrermal energy to transfer

• the paper cup is a conductor and allows thrermal energy to transfer

• my travel mug was insulated to prevent thermal transfer

Multiple Choice

I keep the temperature in my house about 70F. Why does the tile floor in my kitchen feel colder on my feet than the living room carpet?

• tile is lower to the ground so it feels colder

• carpet is fuzzy and attracts more heat

• tile is a conductor and transfers thermal energy from the feet faster than carpet

• carpet is a conductor and transfers thermal energy to the feet faster than tile

Multiple Choice

How does insulation in a wall help keep a house warm on a cold day?

• Insulation makes heat inside the walls of the house

• Insulation moves heat from outside to the inside of the house.

• Insulation helps air flow between the house and the outdoors

• Insulation blocks heat from moving to the outside of the house

Multiple Choice

Which of the following materials would best slow the transfer of heat?

• aluminum

• copper

• glass

• wood

Multiple Choice

Which is considered a good insulator of heat?

• aluminum, because it allows heat to flow easily

• glass, because it allows heat to flow easily

• plastic, because heat is unable to flow easily through it,

• silver, because heat is unable to flow easily through it,

Multiple Choice

Expansion joint strips in bridges are designed to keep a bridge from breaking during extreme temperature changes. Therefore, an expansion joint strip will keep a bridge from breaking in summer because it will

• contract

• stay the same

• expand

• thermal energy

Multiple Choice

Plastic conducts very little thermal energy or electricity. Because of this property, plastic would most likely be used to cover

• metal

• wood

• solids

• liquids

Multiple Choice

Electric wires are coated with a rubber or plastic because these materials are good

• resistors

• magnets

• insulators

• conductors

Multiple Choice

Which feature is a physical property of copper?

• insulates heat

• conducts electricity

• strong magnetic force

• liquid at room temperature