5 NS - Unit 6 (heat,light,electric)

Heat

100

The transfer of energy goes from a -- body to a -- body 

hot to cold

200

Liquid to solid

Solidification

300

Two changes of state involving heat

Melting, Evaporation

400

Body size decreases when it is cooled

Thermal contraction

500

I place a lighter under a dented ping pong ball. This is an example of....

Thermal expansion

Light

100

Name 3 characteristics of light

Travels in a straight line

Travels in all directions

Travels at great speed

200

This material allows light to pass without dispersing it

Transparent

300

This mirror produces images that differ from the original

Curved mirrors

400

This material allows light to pass, but disperses the light

Translucent

500

This type of lens allows objects to appear larger than they really are

Converging lens

Electricity

100

This is a fundamental property of matter

Electrical charge

200

This type of electricity causes a body to attract or repel other bodies

Static electricity

300

Name the two types of electrical charge

positive and negative

400

When do materials attract each other?

When they have a different type of electrical charge 

500

This refers to when a body has an equal number of positive and negative charges

Neutral body

Electrical Current

100

These conduct electricity in a circuit

Wires

200

Name 4 uses of electrical energy

Light, images, and sound

Heating

Movement

Communication

300

This word means: to break when too much current flows through

Blow

400

Name two types of power sources

Batteries

Dynamos

500

This power source converts kinetic energy into electrical energy

Dynamos